Merge branch 'jk/test'

* jk/test:
  enable whitespace checking of test scripts
  avoid trailing whitespace in zero-change diffstat lines
  avoid whitespace on empty line in automatic usage message
  mask necessary whitespace policy violations in test scripts
  fix whitespace violations in test scripts

diff.c

@@ -928,7 +928,8 @@ static void show_stats(struct diffstat_t* data, struct diff_options *options)
 			total = add + del;
 		}
 		show_name(options->file, prefix, name, len, reset, set);
-		fprintf(options->file, "%5d ", added + deleted);
+		fprintf(options->file, "%5d%s", added + deleted,
+				added + deleted ? " " : "");
 		show_graph(options->file, '+', add, add_c, reset);
 		show_graph(options->file, '-', del, del_c, reset);
 		fprintf(options->file, "\n");

parse-options.c

@@ -312,8 +312,12 @@ void usage_with_options_internal(const char * const *usagestr,
 	fprintf(stderr, "usage: %s\n", *usagestr++);
 	while (*usagestr && **usagestr)
 		fprintf(stderr, "   or: %s\n", *usagestr++);
-	while (*usagestr)
-		fprintf(stderr, "    %s\n", *usagestr++);
+	while (*usagestr) {
+		fprintf(stderr, "%s%s\n",
+				**usagestr ? "    " : "",
+				*usagestr);
+		usagestr++;
+	}
 
 	if (opts->type != OPTION_GROUP)
 		fputc('\n', stderr);

t/.gitattributes

@@ -1,2 +1 @@
-t[0-9][0-9][0-9][0-9]-*.sh -whitespace
 t[0-9][0-9][0-9][0-9]/* -whitespace

t/t1502-rev-parse-parseopt.sh

@@ -5,7 +5,7 @@ test_description='test git rev-parse --parseopt'
 
 cat > expect.err <<EOF
 usage: some-command [options] <args>...
-    
+
     some-command does foo and bar!
 
     -h, --help            show the help

t/t3800-mktag.sh

@@ -241,11 +241,11 @@ check_verify_failure 'disallow spaces in tag email' \
 ############################################################
 # 17. disallow missing tag timestamp
 
-cat >tag.sig <<EOF
+tr '_' ' ' >tag.sig <<EOF
 object $head
 type commit
 tag mytag
-tagger T A Gger <tagger@example.com>  
+tagger T A Gger <tagger@example.com>__
 
 EOF
 

t/t3903-stash.sh

@@ -41,7 +41,7 @@ test_expect_success 'apply needs clean working directory' '
 	echo 4 > other-file &&
 	git add other-file &&
 	echo 5 > other-file &&
- 	test_must_fail git stash apply
+	test_must_fail git stash apply
 '
 
 test_expect_success 'apply stashed changes' '

t/t4014-format-patch.sh

@@ -98,7 +98,7 @@ test_expect_success 'extra headers' '
 	sed -e "/^$/q" patch2 > hdrs2 &&
 	grep "^To: R. E. Cipient <rcipient@example.com>$" hdrs2 &&
 	grep "^Cc: S. E. Cipient <scipient@example.com>$" hdrs2
-	
+
 '
 
 test_expect_success 'extra headers without newlines' '
@@ -109,7 +109,7 @@ test_expect_success 'extra headers without newlines' '
 	sed -e "/^$/q" patch3 > hdrs3 &&
 	grep "^To: R. E. Cipient <rcipient@example.com>$" hdrs3 &&
 	grep "^Cc: S. E. Cipient <scipient@example.com>$" hdrs3
-	
+
 '
 
 test_expect_success 'extra headers with multiple To:s' '
@@ -170,7 +170,7 @@ test_expect_success 'thread cover-letter' '
 	git checkout side &&
 	git format-patch --cover-letter --thread -o patches/ master &&
 	FIRST_MID=$(grep "Message-Id:" patches/0000-* | sed "s/^[^<]*\(<[^>]*>\).*$/\1/") &&
-	for i in patches/0001-* patches/0002-* patches/0003-* 
+	for i in patches/0001-* patches/0002-* patches/0003-*
 	do
 	  grep "References: $FIRST_MID" $i &&
 	  grep "In-Reply-To: $FIRST_MID" $i || break

t/t4015-diff-whitespace.sh

@@ -62,16 +62,16 @@ EOF
 
 git update-index x
 
-cat << EOF > x
+tr '_' ' ' << EOF > x
 	whitespace at beginning
 whitespace 	 change
 white space in the middle
-whitespace at end  
+whitespace at end__
 unchanged line
 CR at end
 EOF
 
-tr 'Q' '\015' << EOF > expect
+tr 'Q_' '\015 ' << EOF > expect
 diff --git a/x b/x
 index d99af23..8b32fb5 100644
 --- a/x
@@ -84,7 +84,7 @@ index d99af23..8b32fb5 100644
 +	whitespace at beginning
 +whitespace 	 change
 +white space in the middle
-+whitespace at end  
++whitespace at end__
  unchanged line
 -CR at endQ
 +CR at end

t/t4016-diff-quote.sh

@@ -53,13 +53,13 @@ test_expect_success 'git diff --summary -M HEAD' '
 '
 
 cat >expect <<\EOF
- pathname.1 => "Rpathname\twith HT.0"            |    0 
- pathname.3 => "Rpathname\nwith LF.0"            |    0 
- "pathname\twith HT.3" => "Rpathname\nwith LF.1" |    0 
- pathname.2 => Rpathname with SP.0               |    0 
- "pathname\twith HT.2" => Rpathname with SP.1    |    0 
- pathname.0 => Rpathname.0                       |    0 
- "pathname\twith HT.0" => Rpathname.1            |    0 
+ pathname.1 => "Rpathname\twith HT.0"            |    0
+ pathname.3 => "Rpathname\nwith LF.0"            |    0
+ "pathname\twith HT.3" => "Rpathname\nwith LF.1" |    0
+ pathname.2 => Rpathname with SP.0               |    0
+ "pathname\twith HT.2" => Rpathname with SP.1    |    0
+ pathname.0 => Rpathname.0                       |    0
+ "pathname\twith HT.0" => Rpathname.1            |    0
  7 files changed, 0 insertions(+), 0 deletions(-)
 EOF
 test_expect_success 'git diff --stat -M HEAD' '

t/t4109-apply-multifrag.sh

@@ -9,134 +9,10 @@ test_description='git apply test patches with multiple fragments.
 '
 . ./test-lib.sh
 
-# setup
-
-cat > patch1.patch <<\EOF
-diff --git a/main.c b/main.c
-new file mode 100644
---- /dev/null
-+++ b/main.c
-@@ -0,0 +1,23 @@
-+#include <stdio.h>
-+
-+int func(int num);
-+void print_int(int num);
-+
-+int main() {
-+	int i;
-+
-+	for (i = 0; i < 10; i++) {
-+		print_int(func(i));
-+	}
-+
-+	return 0;
-+}
-+
-+int func(int num) {
-+	return num * num;
-+}
-+
-+void print_int(int num) {
-+	printf("%d", num);
-+}
-+
-EOF
-cat > patch2.patch <<\EOF
-diff --git a/main.c b/main.c
---- a/main.c
-+++ b/main.c
-@@ -1,7 +1,9 @@
-+#include <stdlib.h>
- #include <stdio.h>
- 
- int func(int num);
- void print_int(int num);
-+void print_ln();
- 
- int main() {
- 	int i;
-@@ -10,6 +12,8 @@
- 		print_int(func(i));
- 	}
- 
-+	print_ln();
-+
- 	return 0;
- }
- 
-@@ -21,3 +25,7 @@
- 	printf("%d", num);
- }
- 
-+void print_ln() {
-+	printf("\n");
-+}
-+
-EOF
-cat > patch3.patch <<\EOF
-diff --git a/main.c b/main.c
---- a/main.c
-+++ b/main.c
-@@ -1,9 +1,7 @@
--#include <stdlib.h>
- #include <stdio.h>
- 
- int func(int num);
- void print_int(int num);
--void print_ln();
- 
- int main() {
- 	int i;
-@@ -12,8 +10,6 @@
- 		print_int(func(i));
- 	}
- 
--	print_ln();
--
- 	return 0;
- }
- 
-@@ -25,7 +21,3 @@
- 	printf("%d", num);
- }
- 
--void print_ln() {
--	printf("\n");
--}
--
-EOF
-cat > patch4.patch <<\EOF
-diff --git a/main.c b/main.c
---- a/main.c
-+++ b/main.c
-@@ -1,13 +1,14 @@
- #include <stdio.h>
- 
- int func(int num);
--void print_int(int num);
-+int func2(int num);
- 
- int main() {
- 	int i;
- 
- 	for (i = 0; i < 10; i++) {
--		print_int(func(i));
-+		printf("%d", func(i));
-+		printf("%d", func3(i));
- 	}
- 
- 	return 0;
-@@ -17,7 +18,7 @@
- 	return num * num;
- }
- 
--void print_int(int num) {
--	printf("%d", num);
-+int func2(int num) {
-+	return num * num * num;
- }
- 
-EOF
+cp ../t4109/patch1.patch .
+cp ../t4109/patch2.patch .
+cp ../t4109/patch3.patch .
+cp ../t4109/patch4.patch .
 
 test_expect_success "S = git apply (1)" \
     'git apply patch1.patch patch2.patch'

t/t4109/patch1.patch

@@ -0,0 +1,28 @@
+diff --git a/main.c b/main.c
+new file mode 100644
+--- /dev/null
++++ b/main.c
+@@ -0,0 +1,23 @@
++#include <stdio.h>
++
++int func(int num);
++void print_int(int num);
++
++int main() {
++	int i;
++
++	for (i = 0; i < 10; i++) {
++		print_int(func(i));
++	}
++
++	return 0;
++}
++
++int func(int num) {
++	return num * num;
++}
++
++void print_int(int num) {
++	printf("%d", num);
++}
++

t/t4109/patch2.patch

@@ -0,0 +1,30 @@
+diff --git a/main.c b/main.c
+--- a/main.c
++++ b/main.c
+@@ -1,7 +1,9 @@
++#include <stdlib.h>
+ #include <stdio.h>
+
+ int func(int num);
+ void print_int(int num);
++void print_ln();
+
+ int main() {
+ 	int i;
+@@ -10,6 +12,8 @@
+ 		print_int(func(i));
+ 	}
+
++	print_ln();
++
+ 	return 0;
+ }
+
+@@ -21,3 +25,7 @@
+ 	printf("%d", num);
+ }
+
++void print_ln() {
++	printf("\n");
++}
++

t/t4109/patch3.patch

@@ -0,0 +1,31 @@
+cat > patch3.patch <<\EOF
+diff --git a/main.c b/main.c
+--- a/main.c
++++ b/main.c
+@@ -1,9 +1,7 @@
+-#include <stdlib.h>
+ #include <stdio.h>
+
+ int func(int num);
+ void print_int(int num);
+-void print_ln();
+
+ int main() {
+ 	int i;
+@@ -12,8 +10,6 @@
+ 		print_int(func(i));
+ 	}
+
+-	print_ln();
+-
+ 	return 0;
+ }
+
+@@ -25,7 +21,3 @@
+ 	printf("%d", num);
+ }
+
+-void print_ln() {
+-	printf("\n");
+-}
+-

t/t4109/patch4.patch

@@ -0,0 +1,30 @@
+diff --git a/main.c b/main.c
+--- a/main.c
++++ b/main.c
+@@ -1,13 +1,14 @@
+ #include <stdio.h>
+
+ int func(int num);
+-void print_int(int num);
++int func2(int num);
+
+ int main() {
+ 	int i;
+
+ 	for (i = 0; i < 10; i++) {
+-		print_int(func(i));
++		printf("%d", func(i));
++		printf("%d", func3(i));
+ 	}
+
+ 	return 0;
+@@ -17,7 +18,7 @@
+ 	return num * num;
+ }
+
+-void print_int(int num) {
+-	printf("%d", num);
++int func2(int num) {
++	return num * num * num;
+ }
+