Ticket #1793 (mc aborts then press ctrl-c)

    fixed bindings for 'CmdQuietQuit'

Signed-off-by: Ilia Maslakov <il.smind@gmail.com>

misc/mc.keymap.default

@@ -199,7 +199,7 @@ CmdMkdir = f7
 CmdDelete = f8
 CmdQuit = f10
 CmdMenuLastSelected = f19
-CmdQuietQuit = f20; ctrl-g
+CmdQuietQuit = f20
 CmdFind = alt-question
 CmdQuickCd = alt-c
 CmdQuickChdir = ctrl-backslash