Additional Contributors not in alphabetically order anymore

[Frank Steinborn]

ehaupt commited me to the Additional Contributors List but to the
wrong place, so the List is not ordered anymore. Could someone fix
this? :)

Frank is actually my first name :-)

A question regarding that: Are you using a script to check for the
ordering or are you doing that with your eyes? I'll probably write
one, just want to know if it's existing already.