This resolves one of the last few areas where we still use inappropriate
abbreviations. Reading abbreviated words is usually slower, because
users must parse, guess and translate the words. Using abbreviations
such as 'rot' is also especially bad since it's a word in itself too.
The main advantage of abbreviations is that they are faster to *write*,
which just isn't a concern for text in the UI.
Differential Revision: https://developer.blender.org/D8174
ef0ec01461