patchFix use of hunk tag for non-hunk content.

>The hunk tag d_@ lost its blue forground color in "apply color information
>from git diff output" (2010-10-22, 8f85599). But this tag was also used
>for non-hunk content like untracked file mime types or git submodules.
>
>Introduce a new tag for this type of content which has the blue forground
>again.
>
>Signed-off-by: Bert Wesarg <bert.wesarg@googlemail.com>
>---
> git-gui.sh   |    2 ++
> lib/diff.tcl |   14 +++++++-------
> 2 files changed, 9 insertions(+), 7 deletions(-)
>
>diff --git a/git-gui.sh b/git-gui.sh
>index 38362fa..c85a53c 100755
>--- a/git-gui.sh
>+++ b/git-gui.sh
>@@ -3331,6 +3331,8 @@ foreach {n c} {0 black 1 red4 2 green4 3 yellow4 4 blue4 5 magenta4 6 cyan4 7 gr
> }
> $ui_diff tag configure clr1 -font font_diffbold
> 
>+$ui_diff tag conf d_info -foreground blue -font font_diffbold
>+
> $ui_diff tag conf d_cr -elide true
> $ui_diff tag conf d_@ -font font_diffbold
> $ui_diff tag conf d_+ -foreground {#00a000}
>diff --git a/lib/diff.tcl b/lib/diff.tcl
>index 8fea947..8435635 100644
>--- a/lib/diff.tcl
>+++ b/lib/diff.tcl
>@@ -208,32 +208,32 @@ proc show_other_diff {path w m cont_info} {
> 			$ui_diff insert end [append \
> 				"* " \
> 				[mc "Git Repository (subproject)"] \
>-				"\n"] d_@
>+				"\n"] d_info
> 		} elseif {![catch {set type [exec file $path]}]} {
> 			set n [string length $path]
> 			if {[string equal -length $n $path $type]} {
> 				set type [string range $type $n end]
> 				regsub {^:?\s*} $type {} type
> 			}
>-			$ui_diff insert end "* $type\n" d_@
>+			$ui_diff insert end "* $type\n" d_info
> 		}
> 		if {[string first "\0" $content] != -1} {
> 			$ui_diff insert end \
> 				[mc "* Binary file (not showing content)."] \
>-				d_@
>+				d_info
> 		} else {
> 			if {$sz > $max_sz} {
> 				$ui_diff insert end [mc \
> "* Untracked file is %d bytes.
> * Showing only first %d bytes.
>-" $sz $max_sz] d_@
>+" $sz $max_sz] d_info
> 			}
> 			$ui_diff insert end $content
> 			if {$sz > $max_sz} {
> 				$ui_diff insert end [mc "
> * Untracked file clipped here by %s.
> * To see the entire file, use an external editor.
>-" [appname]] d_@
>+" [appname]] d_info
> 			}
> 		}
> 		$ui_diff conf -state disabled
>@@ -442,10 +442,10 @@ proc read_diff {fd conflict_size cont_info} {
> 		} elseif {$is_submodule_diff} {
> 			if {$line == ""} continue
> 			if {[regexp {^Submodule } $line]} {
>-				set tags d_@
>+				set tags d_info
> 			} elseif {[regexp {^\* } $line]} {
> 				set line [string replace $line 0 1 {Submodule }]
>-				set tags d_@
>+				set tags d_info
> 			} else {
> 				set op [string range $line 0 2]
> 				switch -- $op {