This pullrequest: https://github.com/honza/vim-snippets/pull/704 introduced a
new bug of the 'sbash' snippet of Ultisnips. Python interpreted the \n and \t in
IFS=$'\n\t' and executed them instead of assigning it to the variable IFS.
UltiSnips snippets are taken from UltiSnips repo.
Putting them nearby the engine seems to be the wrong thing to do.
One reason is that there are two forks now.