It is otherwise impossible to determine which test failed sanitizer/valgrind
check. test/functional/helpers.lua module return was changed so that tests which
do not provide after_each function to get new check will automatically fail.
Problem: When there is a backslash in an option ":set -=" doesn't work.
Solution: Handle a backslash better. (Jacob Niehus) Add a new test, merge
in old test.
8f79acdf7e
Problem: When using += with ":set" a trailing comma is not recognized.
(Issue 365)
Solution: Don't add a second comma. Add a test. (partly by Christian
Brabandt)
a7b7b1cef9
