To change this would require extensive modifications to the source. Rather dh_installman should have a way to install manpages into q specified section, eg. "en". Using the exytension to indicate man page section is arbitrary and not a good way to fix this.
I haven't yet investigated this, but will do so and file a wishlist against the helper-suite if applicable. Lars. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]