view .arcconfig @ 35412:b1959391a088

extdata: abort if external command exits with non-zero status (BC)

Per the last discussion, this is more reliable and consistent way than
suppressing an error. For grep, erroring out might be inconvenient, but
for curl, non-zero exit status should be detected. The latter wouldn't be
possible if non-zero status is ignored.

https://www.mercurial-scm.org/pipermail/mercurial-devel/2017-October/105727.html

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