flux-start: exit gracefully with error when getcwd() fails #2280
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This PR fixes the segv in the
cron
module found by @dongahn in issue #2274.A test for
flux-start
run from a removed directory was also added.Finally, while
flux-start
fails gracefully with the cron module fix, there is a huge number of errors. So a check was added early toflux-start
main()
to exit with an error ifgetcwd()
fails to evoke an early exit.