https://github.com/Perl-Toolchain-Gang/ExtUtils-MakeMaker/issues/58

--- Math-Prime-Util-0.73/bin/primes.pl.orig
+++ Math-Prime-Util-0.73/bin/primes.pl
@@ -1,4 +1,4 @@
-#!/usr/bin/env perl
+#!perl
 use strict;
 use warnings;
 use Getopt::Long;
--- Math-Prime-Util-0.73/bin/factor.pl.orig
+++ Math-Prime-Util-0.73/bin/factor.pl
@@ -1,4 +1,4 @@
-#!/usr/bin/env perl
+#!perl
 use strict;
 use warnings;
 use Getopt::Long;