Fix bug introduced during constification (reported by tzanger via IRC)

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@51353 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/pbx.c

@@ -1415,11 +1415,11 @@ int ast_func_read(struct ast_channel *chan, const char *function, char *workspac
 	struct ast_custom_function *acfptr = ast_custom_function_find(copy);
 
 	if (acfptr == NULL)
-		ast_log(LOG_ERROR, "Function %s not registered\n", function);
+		ast_log(LOG_ERROR, "Function %s not registered\n", copy);
 	else if (!acfptr->read)
-		ast_log(LOG_ERROR, "Function %s cannot be read\n", function);
+		ast_log(LOG_ERROR, "Function %s cannot be read\n", copy);
 	else
-		return acfptr->read(chan, function, args, workspace, len);
+		return acfptr->read(chan, copy, args, workspace, len);
 	return -1;
 }
 
@@ -1430,11 +1430,11 @@ int ast_func_write(struct ast_channel *chan, const char *function, const char *v
 	struct ast_custom_function *acfptr = ast_custom_function_find(copy);
 
 	if (acfptr == NULL)
-		ast_log(LOG_ERROR, "Function %s not registered\n", function);
+		ast_log(LOG_ERROR, "Function %s not registered\n", copy);
 	else if (!acfptr->write)
-		ast_log(LOG_ERROR, "Function %s cannot be written to\n", function);
+		ast_log(LOG_ERROR, "Function %s cannot be written to\n", copy);
 	else
-		return acfptr->write(chan, function, args, value);
+		return acfptr->write(chan, copy, args, value);
 
 	return -1;
 }