vim-patch:7.4.241

Problem:    The string returned by submatch() does not distinguish between a
            NL from a line break and a NL that stands for a NUL character.
Solution:   Add a second argument to return a list. (ZyX)

https://code.google.com/p/vim/source/detail?r=a63d0cd691dc925283815d17d62f4e948d723a59