[Git-commits] [grml/grml-etc-core] 675c85: zshrc: support PAGER='less -Mr' usage and fall bac...

[Michael Prokop]

  Branch: refs/heads/mika/dchange
  Home:   https://github.com/grml/grml-etc-core
  Commit: 675c85b5e23d4eb5ce94b7aaf300f6847cd0af81
      https://github.com/grml/grml-etc-core/commit/675c85b5e23d4eb5ce94b7aaf300f6847cd0af81
  Author: Michael Prokop <mika at grml.org>
  Date:   2019-11-14 (Thu, 14 Nov 2019)

  Changed paths:
    M etc/zsh/zshrc

  Log Message:
  -----------
  zshrc: support PAGER='less -Mr' usage and fall back to vi if LESSOPEN is unset

It's horribly annoying when PAGER is set to less, but lesspipe isn't configured
via LESSOPEN, then `dchange $package` fails with less like this:

% dchange zsh
"/usr/share/doc/zsh/changelog.Debian.gz" may be a binary file.  See it anyway?

vi(m) handles *.gz just fine, so let's try to use vi if PAGER is set to
less and LESSOPEN is unset.

While at it fix usage of ${PAGER} vs ${=PAGER} to also handle
a setting like PAGER='less -Mr' and PAGER=(less -Mr), otherwise
failing with `command not found: less -Mr`.

Thanks: András Korn for review and improvement suggestions