t/UploadedFile, updated comment

t/db_dependent/UploadedFile.t

@@ -1,7 +1,8 @@
 #!/usr/bin/perl
 #
-# This Koha test module is a stub!  
-# Add more tests here!!!
+
+# A simple test for UploadedFile
+# only ->new is covered
 
 use strict;
 use warnings;
@@ -12,4 +13,4 @@ BEGIN {
         use_ok('C4::UploadedFile');
 }
 
-ok(my $file = C4::UploadedFile->new());
+ok(my $file = C4::UploadedFile->new());