Follow up to r2222: Fix the code to enable logging for testing.
Follow up to r2222: Fix the code to enable logging for testing.

* logging.c
  (log_baton_t): Remove obsolete variables level & comps.
  (serf__log_init): Save the log_baton first before it's used to add the log
       output.

KyleSanderson/serf,pengdu/serf,KyleSanderson/serf,x-clone/serf,zhupan/serf,alex1818/serf,zhupan/serf,stoneCC/serf,alex1818/serf,KyleSanderson/serf,stoneCC/serf,x-clone/serf,alex1818/serf,soufianeEL/serf,zhengcq315/serf,soufianeEL/serf,SirJson/serf,SirJson/serf,pengdu/serf,x-clone/serf,lazysoez/serf,SirJson/serf,google-code-export/serf,yesoce/serf,zhengcq315/serf,zhupan/serf,yesoce/serf,yesoce/serf,zhengcq315/serf,KyleSanderson/serf,pengdu/serf,pengdu/serf,lazysoez/serf,zhupan/serf,stoneCC/serf,soufianeEL/serf,soufianeEL/serf,alex1818/serf,google-code-export/serf,lazysoez/serf,google-code-export/serf,SirJson/serf,google-code-export/serf,zhengcq315/serf,yesoce/serf,lazysoez/serf,stoneCC/serf,x-clone/serf