Merge git://repo.or.cz/git-gui

* git://repo.or.cz/git-gui:
  git-gui: suppress RenderBadPicture X error caused by Tk bug
  git-gui: Increase blame viewer usability on MacOS.
  git-gui: search 4 directories to improve statistic of gc hint
  git gui: make current branch default in "remote delete branch" merge check

git-gui/git-gui.sh

@@ -2052,6 +2052,11 @@ proc do_quit {{rc {1}}} {
 	}
 
 	set ret_code $rc
+
+	# Briefly enable send again, working around Tk bug
+	# http://sourceforge.net/tracker/?func=detail&atid=112997&aid=1821174&group_id=12997
+	tk appname [appname]
+
 	destroy .
 }