do not set if unknown parameter if config file, just skip

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@17515 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

ffserver.c

@@ -4416,7 +4416,6 @@ static int parse_ffconfig(const char *filename)
         } else {
             fprintf(stderr, "%s:%d: Incorrect keyword: '%s'\n",
                     filename, line_num, cmd);
-            errors++;
         }
     }