rebase: update comment about FreeBSD /bin/sh
Commit 9f50d32b introduced a fix for FreeBSD /bin/sh misbehaviour when dot-sourcing a file containing "return" statements outside of any function, from a function in another shell script. That issue affects FreeBSD 9.x, and is not present in the /bin/sh in FreeBSD 10.3 and later. Update the comment to clarify this. The example from 9f50d32b's commit message produces the expected output on FreeBSD 10.3 and -CURRENT (the upcoming 11.0): % sh script1.sh only this line should show % Signed-off-by: NEd Maste <emaste@freebsd.org> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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