Add code snipplet by il.smind which should fix issues with putty and

mc (mc over ssh on a putty console)
 - to reproduce try this:
    1) run 'putty'; login to remote host
    2) run mc
    3) press key '/' on keypad. You will see menu that is called when you press the F2
    4) Go to 'Learn keys' (simple call dialog)
    5) just exit from 'learn keys' dialog (without any changes)
    6) 3) press key '/' on keypad again. You will see '/' symbol in command line.

src/main.c

@@ -1617,6 +1617,8 @@ update_xterm_title_path (void)
 	    if (!is_printable ((unsigned char) *s))
 		*s = '?';
 	} while (*++s);
+	if (!alternate_plus_minus)
+	    numeric_keypad_mode ();
 	fprintf (stdout, "\33]0;mc - %s\7", p);
 	fflush (stdout);
 	g_free (p);