Use /usr/bin/env shebang in record.pl

This record script was made primarily for my use - I don't think anyone
else other than me uses it. My Linux system accepts /bin/env and
/usr/bin/env, but my OS X box only has /usr/bin/env unless I intervene
manually and symlink it every time I upgrade OS X.

Basically, I'm optimizing selfishly, but I strongly doubt this will
impact anyone else since no one else uses the script. :)

t/bin/record.pl

@@ -1,5 +1,4 @@
-#!/bin/env perl
-
+#! /usr/bin/env perl
 use strict;
 use warnings;