Update to 1.46.4:

help2man (1.46.4) unstable; urgency=medium

  * Include architecture.mk and buildflags.mk into rules to replace the
    multiple calls to dpkg-architecture and to pick up the correct
    hardening flags.
  * Add $(LDFLAGS) when building preload to pick up -z relro (see
    https://wiki.debian.org/Hardening).
  * Minor correction to Norwegian Bokmaal translation.
  * Minor correction to Brazilian Portuguese translation.
  * Escape dashes in --name flag for groff (see lintian tag:
    hyphen-used-as-minus-sign).
  * Fix example using AM_MISSING_PROG in documentation: this macro no
    longer requires the third argument.

(wiz)