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

* git://repo.or.cz/git-gui: git-gui: Correctly cleanup msgfmt '1 message untranslated' output git-gui: Make the statistics of po2msg match those of msgfmt git-gui: Fallback to Tcl based po2msg.sh if msgfmt isn't available git-gui: Work around random missing scrollbar in revision list