Added missing close for export fh.

diff --git a/qwikboard b/qwikboard
index 59563f5..0a85a2b 100755 (executable)
--- a/qwikboard
+++ b/qwikboard
@@ -195,6 +195,8 @@ local function export_messages(handle, output_file_name)
          end
       end
    end
+
+   fh:close()
 end
 
 --- QWK formatting ---