Modify a clerical error to make the code be readable.

Change-Id: I1b3e413bb626267298fee69cc935a95115e1fb9d
Closes-Bug: #1838004
Signed-off-by: YeHuiSheng <hsye@fiberhome.com>

mtce/src/pmon/pmonHdlr.cpp

@@ -226,7 +226,7 @@ int signal_hdlr_init ( int sig_num )
     int rc ;
 
     memset (&_pmon_ctrl_ptr->info, 0, sizeof(_pmon_ctrl_ptr->info));
-    memset (&_pmon_ctrl_ptr->prev, 0, sizeof(_pmon_ctrl_ptr->info));
+    memset (&_pmon_ctrl_ptr->prev, 0, sizeof(_pmon_ctrl_ptr->prev));
 
     _pmon_ctrl_ptr->info.sa_sigaction = _process_death_hdlr ;
     _pmon_ctrl_ptr->info.sa_flags = (SA_NOCLDSTOP | SA_NOCLDWAIT | SA_SIGINFO) ;