Make ffserver daemon chdir()s just after log init. This way a

relative path for the logfile is resolved according to the directory
where ffserver has been launched, as the user expects.

Originally committed as revision 13911 to svn://svn.ffmpeg.org/ffmpeg/trunk

ffserver.c

@@ -4496,7 +4496,6 @@ int main(int argc, char **argv)
         } else {
             /* child */
             setsid();
-            chdir("/");
             close(0);
             open("/dev/null", O_RDWR);
             if (strcmp(logfilename, "-") != 0) {
@@ -4520,6 +4519,9 @@ int main(int argc, char **argv)
         av_log_set_callback(http_av_log);
     }
 
+    if (ffserver_daemon)
+        chdir("/");
+
     if (http_server() < 0) {
         http_log("Could not start server\n");
         exit(1);