updated for version 7.4.256 Problem: Using systemlist() may cause a crash and does not handle NUL characters properly. Solution: Increase the reference count, allocate memory by length. (Yasuhiro Matsumoto)

Tests for file with some lines ending in CTRL-M, some not

STARTTEST
:set ta tx
:e!
:$-3,$w! test.out
:qa!
ENDTEST

this lines ends in a
this one doesn't
this one does
and the last one doesn't