annotate.perl triggers rpm bug

RPM, at least on Fedora boxes, automatically creates a
dependency for any perl "use" lines, and one of the help text
lines unfortunately begins like this:

    -S, --rev-file revs-file
            use revs from revs-file instead of calling git-rev-list

RPM gets confused and creates a false dependecy for the
nonexistent perl package "revs".  Obviously this creates a
problem when someone goes to install the git-core rpm.

Since other help sentences all start with capital letter, make
this one match them by upcasing "Use".  As a side effect, RPM
stops getting confused.

Signed-off-by: Junio C Hamano <junkio@cox.net>

git-annotate.perl

@@ -20,7 +20,7 @@ ()
 	-r, --rename
 			Follow renames (Defaults on).
 	-S, --rev-file revs-file
-			use revs from revs-file instead of calling git-rev-list
+			Use revs from revs-file instead of calling git-rev-list
 	-h, --help
 			This message.
 ';