and '49558797dbe6d2257ca1932726de2b396fe14cd8'

     and '88a9eef5dd75416a1ccd8dba36ff97bc1c852638'

     and 'c5199aeb5743f18aa8d74b518520c42381091f9d'

extract-messages.sh was 'fixed' in ff0e551bd7eaa9cb26d14a6606d66eb4ae9de7e0

- no unneccesary uses of cat
- create tempfile with mktemp and cleanup with a trap
- simplify regex

TODO: improve scripts to detect unchanged files

     and 'fb3d8b7dad590ab86a7d1fb4fd0706f9f44c6209'

     and '6c6618728a160f6ee536f781d114197977411a1f'