=item B<-M> I<module-name>
This specifies the module that you want to try using for formatting the
-pod. The class must must at least provide a C<parse_from_file> method.
+pod. The class must at least provide a C<parse_from_file> method.
For example: C<perldoc -MPod::Perldoc::ToChecker>.
You can specify several classes to try by joining them with commas
=head2 entersub XS vs Perl
At the moment pp_entersub is huge, and has code to deal with entering both
-perl and and XS subroutines. Subroutine implementations rarely change between
+perl and XS subroutines. Subroutine implementations rarely change between
perl and XS at run time, so investigate using 2 ops to enter subs (one for
XS, one for perl) and swap between if a sub is redefined.
=item *
-chmod, chmod, chown, chroot, exec, link, lstat, mkdir,
+chdir, chmod, chown, chroot, exec, link, lstat, mkdir,
rename, rmdir, stat, symlink, truncate, unlink, utime, -X
=item *