macOS Catalina provides zsh as one of the three options for /bin/sh (the other two being bash and dash). Therefore, it's possible that people will use zsh as /bin/sh and expect it to work when running Git and the testsuite. There are two things required for this to happen. One is a patch to zsh to make it run all items in a pipeline in a subshell in sh mode, just as POSIX requires. I've sent a patch[0] upstream to make that happen; without that patch, multiple tests fail. The other is this patch, which addresses a difference in behavior between bash and dash, which strip out NUL bytes from the output of a command substitution, and zsh, which does not. Both behaviors are permitted by POSIX, so this patch makes the test work in either case. [0] https://www.zsh.org/mla/workers/2019/msg00960.html brian m. carlson (1): t9001: avoid including non-trailing NUL bytes in variables t/t9001-send-email.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
