another null check

Author: Marc Stern

apache2/apache2_config.c

@@ -32,7 +32,9 @@
 
 // Returns the rule id if existing, otherwise the file name & line number
 const char* id_log(msre_rule* rule) {
-	char* id = rule->actionset->id;
+    assert(rule != NULL);
+    assert(rule->actionset != NULL);
+    char* id = rule->actionset->id;
     if (!id || !*id || id == NOT_SET_P) id = apr_psprintf(rule->ruleset->mp, "%s (%d)", rule->filename, rule->line_num);
 	return id;
 }