Make Perl shebangs Prefix friendly
See also: https://blogs.gentoo.org/mgorny/2016/02/08/a-quick-note-on-portable-shebangs/

--- a/scripts/MSPCollect.pl
+++ b/scripts/MSPCollect.pl
@@ -1,4 +1,4 @@
-#! /usr/bin/perl
+#!/usr/bin/env perl
 
 if (!@ARGV) {
     die "usage: MSPCollect BLAST_output_file\n";
--- a/scripts/recon.pl
+++ b/scripts/recon.pl
@@ -1,4 +1,4 @@
-#! /usr/bin/perl
+#!/usr/bin/env perl
 
 $path = "";