[ticket/11917] Replace space with tabs

PHPBB3-11917
Merge pull request #2352 from nickvergessen/ticket/11917

[ticket/11917] Replace space with tabs

* nickvergessen/ticket/11917:
  [ticket/11917] Replace space with tabs
Merge branch 'develop-ascraeus' into develop

* develop-ascraeus:
  [ticket/11917] Replace space with tabs