[gimp] (3 commits) Non-fast-forward update to branch nielsdg/gi-docgen

[Jehan <jehanp src gnome org>]

The branch 'nielsdg/gi-docgen' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  18b9a3a... docs: Migrate from gtk-doc to gi-docgen

Commits added to the branch:

  429d536... Update Portuguese translation (*)
  3fe0151... Update Portuguese translation (*)
  0c56f68... docs: Migrate from gtk-doc to gi-docgen

(*) This commit already existed in another branch; no separate mail sent