[BUG] make test fails on osx (t7502-commit.sh)

just checked out the main branch 1fbb58b4153e90eda08c2b022ee32d90729582e6 The offending message from make test follows.

-Kate P.S. My apologies if this is a dupe. I didn't see it when i searched the archives.

*** t7502-commit.sh ***
*   ok 1: the basics
*   ok 2: partial
*   ok 3: partial modification in a subdirecotry
*   ok 4: partial removal
*   ok 5: sign off
*   ok 6: multiple -m
*   ok 7: verbose
*   ok 8: cleanup commit messages (verbatim,-t)
*   ok 9: cleanup commit messages (verbatim,-F)
*   ok 10: cleanup commit messages (verbatim,-m)
*   ok 11: cleanup commit messages (whitespace,-F)
*   ok 12: cleanup commit messages (strip,-F)
*   ok 13: cleanup commit messages (strip,-F,-e)
*   ok 14: author different from committer
sed: 1: "expect": invalid command code e
* FAIL 15: committer is automatic
	
	
		echo >>negative &&
		git commit -e -m "sample"
		head -n 8 .git/COMMIT_EDITMSG |	\
		sed "s/^# Committer: .*/# Committer:/" >actual &&
		test_cmp expect actual
	
*   ok 16: do not fire editor in the presence of conflicts
* failed 1 among 16 test(s)
make[1]: *** [t7502-commit.sh] Error 1
make: *** [test] Error 2