patch 8.0.0284: collapse buffers test failed once commit https://github.com/vim/vim/commit/b245559fa9b03bfb0d0f77023120e60d870f0b56 Author: Bram Moolenaar <Bram@vim.org> Date: Wed Feb 1 18:00:13 2017 +0100 patch 8.0.0284: collapse buffers test failed once Problem: The Test_collapse_buffers() test failed once, looks like it is flaky. Solution: Add it to the list of flaky tests.

start:
test for empty string: ok
test for 1 char: ok
test for 3 chars: ok
test for contains meta char: ok
test for contains non-ascii char: ok