Fix a warning

1 files changed, 2 insertions, 1 deletions

diff --git a/installer/installer.php b/installer/installer.php
index ab2963ba..1a36ddb5 100644
--- a/installer/installer.php
+++ b/installer/installer.php
@@ -50,6 +50,7 @@ class installer {
 
   static function unpack_sql($config) {
     $prefix = $config["prefix"];
+    $buf = null;
     foreach (file(DOCROOT . "installer/install.sql") as $line) {
       $buf .= $line;
       if (preg_match("/;$/", $buf)) {
@@ -133,4 +134,4 @@ class installer {
   static function prepend_prefix($prefix, $sql) {
     return  preg_replace("#{([a-zA-Z0-9_]+)}#", "{$prefix}$1", $sql);
   }
-}
\ No newline at end of file
+}