Fix warning message

The parameter `arg` is of type `struct probe_common_main_argument *`
and should not be typecast to `char *`. To get the probe name, we need
to access the subtype variable and convert it to string.

Author: jan-cerny

src/OVAL/probes/probe/input_handler.c

@@ -124,7 +124,7 @@ void *probe_input_handler(void *arg)
 			SEXP_VALIDATE(oid);
 
 			if (probe->offline_mode && probe->supported_offline_mode == PROBE_OFFLINE_NONE) {
-				dW("Requested offline mode is not supported by %s.", probe->name);
+				dW("Requested offline mode is not supported by %s probe.", oval_subtype_get_text(probe->subtype));
 				/* Return a dummy. */
 				probe_out = probe_cobj_new(SYSCHAR_FLAG_NOT_APPLICABLE, NULL, NULL, NULL);
 				probe_ret = 0;

src/OVAL/probes/probe/probe.h

@@ -47,7 +47,6 @@ typedef struct {
 	pthread_rwlock_t rwlock;
 	uint32_t         flags;
 
-	char       *name;
 	pid_t       pid;
 
         void       *probe_arg;

src/OVAL/probes/probe/probe_main.c

@@ -158,7 +158,6 @@ static void probe_common_main_cleanup(void *arg)
 	rbt_i32_free(probe->workers);
 	SEAP_CTX_free(probe->SEAP_ctx);
 	free(probe->option);
-	free(probe->name);
 
 	dD("probe_common_main_cleanup finished");
 }
@@ -193,7 +192,6 @@ void *probe_common_main(void *arg)
 	probe.selected_offline_mode = PROBE_OFFLINE_NONE;
 	probe.flags = 0;
 	probe.pid   = getpid();
-	probe.name = (char *) arg;
         probe.probe_exitcode = 0;
 
 	/*