Removed explicit (incorrect) perl path

direct/src/leveleditor/copyfiles.pl

@@ -1,4 +1,4 @@
-#!/bin/perl -w
+#!perl -w
 use strict;
 #use File::Copy;
 use File::Basename;

pandatool/src/scripts/binreplace.pl

@@ -1,4 +1,4 @@
-#!/bin/perl
+#!perl
 if($#ARGV<2) {
     print "Usage: perl binreplace.pl [-i] [findstr] [replacestr] [filename]\n";
     exit(1);

pandatool/src/scripts/cvlog.pl

@@ -1801,7 +1801,7 @@ Note about a bug-slash-opportunity:
 There's a bug in Text::Wrap, which affects cvs2cl.  This script
 reveals it:
 
-  #!/usr/bin/perl -w
+  #!perl -w
   
   use Text::Wrap;