don't segfault on :exec irregular arguments #686
Merged
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Bug: segfaults on
:exec
(no args) and:exec !
(flags but no actual command args).Created a directory
test/prompt/
here, which is debatable, since the included tests don't work by stuffing keystrokes. But it would be a good thing for the test suite to learn how to stuff keystokes, and populate a propertest/prompt/
.