cosmetics: Make 'ffserver -h' output consistent with other ff* tools.

patch by Stefano Sabatini, stefano.sabatini-lala poste it

Originally committed as revision 13182 to svn://svn.ffmpeg.org/ffmpeg/trunk

ffserver.c

@@ -4308,9 +4308,9 @@ static void show_help(void)
     printf("usage: ffserver [-L] [-h] [-f configfile]\n"
            "Hyper fast multi format Audio/Video streaming server\n"
            "\n"
-           "-L            : print the LICENSE\n"
-           "-h            : this help\n"
-           "-f configfile : use configfile instead of /etc/ffserver.conf\n"
+           "-L              show license\n"
+           "-h              show help\n"
+           "-f configfile   use configfile instead of /etc/ffserver.conf\n"
            );
 }