fix function name

Author: davidpanderson

tools/update_versions

@@ -41,11 +41,11 @@ $verbose = false;
 
 $config = file_get_contents("config.xml");
 if (!$config) die("config.xml not found.  Run this in project root dir.\n");
-$download_url = parse_element($config, "<download_url>");
+$download_url = parse_element_text($config, "<download_url>");
 if (!$download_url) die("<download_url> not found in config.xml\n");
-$download_dir = parse_element($config, "<download_dir>");
+$download_dir = parse_element_text($config, "<download_dir>");
 if (!$download_dir) die("<download_dir> not found in config.xml\n");
-$key_dir = parse_element($config, "<key_dir>");
+$key_dir = parse_element_text($config, "<key_dir>");
 if (!$key_dir) die("<key_dir> not found in config.xml\n");
 
 function lookup_app($name) {