Add support for perl installs outside of /usr/bin

Change "perl -w" to "use warnings" for compatibility with systems that
put all #! args into argv[1].

1 files changed, 2 insertions, 1 deletions

diff --git a/tests/genutf8.pl b/tests/genutf8.pl
index 4960663..6a522dd 100755
--- a/tests/genutf8.pl
+++ b/tests/genutf8.pl
@@ -1,8 +1,9 @@
-#!/usr/bin/perl -w
+#!/usr/bin/env perl
 
 # Create test comparison data using a different UTF-8 implementation.
 
 use strict;
+use warnings;
 use Text::Iconv;
 use FileHandle;