commit https://github.com/vim/vim/commit/a3306958dcb9aadff1e1e8521d908d86b10ac99a Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jan 2 21:41:06 2016 +0100 patch 7.4.1035 Problem: An Ex range gets adjusted for folded lines even when the range is not using line numbers. Solution: Only adjust line numbers for folding. (Christian Brabandt)

Tests for writefile()

STARTTEST
:source small.vim
:%delete _
:let f = tempname()
:call writefile(["over","written"], f, "b")
:call writefile(["hello","world"], f, "b")
:call writefile(["!", "good"], f, "a")
:call writefile(["morning"], f, "ab")
:call writefile(["", "vimmers"], f, "ab")
:bwipeout!
:$put =readfile(f)
:1 delete _
:w! test.out
:qa!
ENDTEST