Pass command_info[] to audit plugin on I/O log plugin reject or error.

The audit plugin should cope with a NULL command_info but there's no
reason not to pass the info when we have it.

src/sudo.h

@@ -174,6 +174,7 @@ struct command_details {
     priv_set_t *privs;
     priv_set_t *limitprivs;
 #endif
+    char * const *info;
 };
 
 /* Status passed between parent and child via socketpair */