containing C<\w>, put C<no locale> ahead of the expression in the same
block. See L<perllocale/SECURITY> for further discussion and examples.
+=head2 Switches On the "#!" Line
+
+When you make a script executable, in order to make it usable as a
+command, the system will pass switches to perl from the script's #!
+line. Perl checks that any command-line switches given to a setuid
+(or setgid) script actually match the ones set on the #! line. Some
+UNIX and UNIX-like environments impose a one-switch limit on the #!
+line, so you may need to use something like C<-wU> instead of C<-w -U>
+under such systems. (This issue should arise only in UNIX or
+UNIX-like environments that support #! and setuid or setgid scripts.)
+
=head2 Cleaning Up Your Path
For "Insecure C<$ENV{PATH}>" messages, you need to set C<$ENV{'PATH'}> to a