OS-1576 Sundry uninitialised variables
Reviewed by: Robert Mustacchi <rm@joyent.com>

*** 1246,1256 ****
          zone_state_t zstate;
          zone_cmd_t cmd;
          boolean_t debug;
          zone_cmd_arg_t *zargp;
  
!         boolean_t kernelcall;
  
          int rval = -1;
          uint64_t uniqid;
          zoneid_t zoneid = -1;
          zlog_t zlog;
--- 1246,1256 ----
          zone_state_t zstate;
          zone_cmd_t cmd;
          boolean_t debug;
          zone_cmd_arg_t *zargp;
  
!         boolean_t kernelcall = B_TRUE;
  
          int rval = -1;
          uint64_t uniqid;
          zoneid_t zoneid = -1;
          zlog_t zlog;