Remove unnecessary copyright notice from ffplay.c:show_help.

patch by Stefano Sabatini stefano sabatini-lala poste it

Originally committed as revision 10604 to svn://svn.ffmpeg.org/ffmpeg/trunk

ffplay.c

@@ -2479,8 +2479,7 @@ const OptionDef options[] = {
 
 void show_help(void)
 {
-    printf("ffplay version " FFMPEG_VERSION ", Copyright (c) 2003-2007 Fabrice Bellard, et al.\n"
-           "usage: ffplay [options] input_file\n"
+    printf("usage: ffplay [options] input_file\n"
            "Simple media player\n");
     printf("\n");
     show_help_options(options, "Main options:\n",