Jim Porter 785a045b86 Ensure that the CAR of 'eshell-last-async-procs' always points to a process ...

Previously, if a non-process was piped to a process, this could end up
being nil, which isn't correct.  'eshell-last-async-procs' should just
ignore non-process commands in a pipeline.

* lisp/eshell/esh-cmd.el (eshell-do-pipelines): Set 'headproc'
correctly.

* test/lisp/eshell/eshell-tests.el (eshell-test/pipe-headproc): New test.

2022-02-05 07:58:59 +01:00

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