Fix MB vs. GB

diff --git a/mailsize b/mailsize
index 37fc189..988776a 100755 (executable)
--- a/mailsize
+++ b/mailsize
@@ -112,7 +112,7 @@ if ($arg&&load_ok()) {
       return "$b bytes" if !$kb;
       my $mb=int($kb/1000);
       return "$kb KB" if !$mb;
-      my $gb=int($kb/1000);
+      my $gb=int($mb/1000);
       return "$mb MB" if !$gb;
       return "$gb GB";
     }