[PATCH] gitk: add current directory to main window title

This can help people keep track of which gitk is which, when they
have several on the screen.

Signed-off-by: Doug Maxey <dwm@enoyolf.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

gitk

@@ -6293,6 +6293,7 @@ set stuffsaved 0
 set patchnum 0
 setcoords
 makewindow
+wm title . "[file tail $argv0]: [file tail [pwd]]"
 readrefs
 
 if {$cmdline_files ne {} || $revtreeargs ne {}} {