git-gui: correct spelling errors in comments

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>

Makefile

@@ -4,7 +4,7 @@ all::
 #
 # Define NO_MSGFMT if you do not have msgfmt from the GNU gettext
 # package and want to use our rough pure Tcl po->msg translator.
-# TCL_PATH must be vaild for this to work.
+# TCL_PATH must be valid for this to work.
 #
 
 GIT-VERSION-FILE: FORCE

lib/blame.tcl

@@ -5,7 +5,7 @@ class blame {
 
 image create photo ::blame::img_back_arrow -data {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}
 
-# Persistant data (survives loads)
+# Persistent data (survives loads)
 #
 field history {}; # viewer history: {commit path}
 field header    ; # array commit,key -> header field

lib/index.tcl

@@ -414,7 +414,7 @@ proc revert_helper {txt paths} {
 	# such distinction is needed in some languages. Previously, the
 	# code used "Revert changes in" for both, but that can't work
 	# in languages where 'in' must be combined with word from
-	# rest of string (in diffrent way for both cases of course).
+	# rest of string (in different way for both cases of course).
 	#
 	# FIXME: Unfortunately, even that isn't enough in some languages
 	# as they have quite complex plural-form rules. Unfortunately,

lib/spellcheck.tcl

@@ -14,7 +14,7 @@ field w_menu      ; # context menu for the widget
 field s_menuidx 0 ; # last index of insertion into $w_menu
 
 field s_i           {} ; # timer registration for _run callbacks
-field s_clear        0 ; # did we erase mispelled tags yet?
+field s_clear        0 ; # did we erase misspelled tags yet?
 field s_seen    [list] ; # lines last seen from $w_text in _run
 field s_checked [list] ; # lines already checked
 field s_pending [list] ; # [$line $data] sent to ispell/aspell
@@ -259,7 +259,7 @@ method _run {} {
 		if {$n == $cur_line
 		 && ![regexp {^\W$} [$w_text get $cur_pos insert]]} {
 
-			# If the current word is mispelled remove the tag
+			# If the current word is misspelled remove the tag
 			# but force a spellcheck later.
 			#
 			set tags [$w_text tag names $cur_pos]