[InterNetNews/inn] ccab55: install-sh: Update to latest upstream version

[Julien ÉLIE]

  Branch: refs/heads/main
  Home:   https://github.com/InterNetNews/inn
  Commit: ccab5538da4581629ee1bac7e5504cac39901989
      https://github.com/InterNetNews/inn/commit/ccab5538da4581629ee1bac7e5504cac39901989
  Author: Julien ÉLIE <Julien-Elie at users.noreply.github.com>
  Date:   2022-05-03 (Tue, 03 May 2022)

  Changed paths:
    M support/install-sh

  Log Message:
  -----------
  install-sh: Update to latest upstream version

No real change, just spurious spaces removed.