get_version: add missing substr

diff --git a/include/version.php b/include/version.php
index 391af88cb1de3be2ce2cb8aa77043497767be176..3169ff2221e5bafbedbf284694f6c3d9370496f1 100644 (file)
--- a/include/version.php
+++ b/include/version.php
@@ -23,7 +23,7 @@
                                        return VERSION_STATIC . " ($suffix)";
 
                                } else {
-                                       $suffix = trim($head, 0, 7);
+                                       $suffix = substr(trim($head), 0, 7);
                                        $timestamp = filemtime("$root_dir/.git/HEAD");
 
                                        define("GIT_VERSION_HEAD", $suffix);