wrap-lines breaks apply/revert in stage view

[CervEdin]

Setting

set wrap-lines = yes

causes apply/revert functionality in stage view to fail to apply/revert chunks, with chunks that have wrapped lines.

Possibly related to #454.

My guess is that the wrapped chunks are passed to the underlying git commands that deal with chunks which causes them to fail (with the wrapped newlines).

I saw this in tig version 2.5.7 running in Git for Windows.

Love the tool ❤❤❤