--- a/mercurial/debugcommands.py Tue Feb 20 21:37:30 2018 -0500
+++ b/mercurial/debugcommands.py Tue Feb 20 22:03:13 2018 -0500
@@ -1241,6 +1241,8 @@
editor = ui.geteditor()
editor = util.expandpath(editor)
editorbin = pycompat.shlexsplit(editor, posix=not pycompat.iswindows)[0]
+ if pycompat.iswindows and editorbin[0] == '"' and editorbin[-1] == '"':
+ editorbin = editorbin[1:-1]
fm.write('editor', _("checking commit editor... (%s)\n"), editorbin)
cmdpath = util.findexe(editorbin)
fm.condwrite(not cmdpath and editor == 'vi', 'vinotfound',