Realtime keystroke recording for Vim

realtime.diff

--- src/main.c~ 2012-10-23 12:35:34.000000000 +0900
+++ src/main.c  2012-12-04 18:42:25.000000000 +0900
@@ -2315,6 +2315,7 @@
                        mch_errmsg("\"\n");
                        mch_exit(2);
                    }
+                   setvbuf(scriptout, NULL, _IONBF, 0);
                    break;

 #ifdef FEAT_GUI_W32