commit https://github.com/vim/vim/commit/2321ca2a78286bc026fa7f407281ddbeb04114bb Author: Bram Moolenaar <Bram@vim.org> Date: Fri Sep 9 14:17:18 2016 +0200 patch 7.4.2349 Problem: Valgrind reports using uninitialzed memory. (Dominique Pelle) Solution: Check the length before checking for a NUL.

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