Log Message:
xbacklight: update to 1.2.4.

Alan Coopersmith (4):
      gitlab CI: add a basic build test
      Build xz tarballs instead of bzip2
      gitlab CI: stop requiring Signed-off-by in commits
      Accept --help & --version as aliases to -help & -version

Andreas Tille (1):
      xbacklight.man: Add missing items in SYNOPSIS

Matt Turner (1):
      xbacklight 1.2.4