merge(3p/git): Merge git subtree at v2.29.2 r/1890

This also bumps the stable nixpkgs to 20.09 as of 2020-11-21, because
there is some breakage in the git build related to the netrc
credentials helper which someone has taken care of in nixpkgs.

The stable channel is not used for anything other than git, so this
should be fine.

Change-Id: I3575a19dab09e1e9556cf8231d717de9890484fb

1 files changed, 2 insertions, 2 deletions

diff --git a/third_party/git/t/t1512-rev-parse-disambiguation.sh b/third_party/git/t/t1512-rev-parse-disambiguation.sh
index c19fb500cb..18fa6cf40d 100755
--- a/third_party/git/t/t1512-rev-parse-disambiguation.sh
+++ b/third_party/git/t/t1512-rev-parse-disambiguation.sh
@@ -282,7 +282,7 @@ test_expect_success 'rev-parse --disambiguate' '
 	# commits created by commit-tree in earlier tests share a
 	# different prefix.
 	git rev-parse --disambiguate=000000000 >actual &&
-	test $(wc -l <actual) = 16 &&
+	test_line_count = 16 actual &&
 	test "$(sed -e "s/^\(.........\).*/\1/" actual | sort -u)" = 000000000
 '
 
@@ -339,7 +339,7 @@ test_expect_success C_LOCALE_OUTPUT 'ambiguity hints' '
 test_expect_success C_LOCALE_OUTPUT 'ambiguity hints respect type' '
 	test_must_fail git rev-parse 000000000^{commit} 2>stderr &&
 	grep ^hint: stderr >hints &&
-	# 5 commits, 1 tag (which is a commitish), plus intro line
+	# 5 commits, 1 tag (which is a committish), plus intro line
 	test_line_count = 7 hints
 '