Merge branch 'mg/verify-commit' into maint

Workarounds for certain build of GPG that triggered false breakage
in a test.

* mg/verify-commit:
  t7510: do not fail when gpg warns about insecure memory

t/t7510-signed-commit.sh

@@ -86,8 +86,8 @@ test_expect_success GPG 'show signed commit with signature' '
 	git show -s --show-signature initial >show &&
 	git verify-commit -v initial >verify.1 2>verify.2 &&
 	git cat-file commit initial >cat &&
-	grep -v "gpg: " show >show.commit &&
-	grep "gpg: " show >show.gpg &&
+	grep -v -e "gpg: " -e "Warning: " show >show.commit &&
+	grep -e "gpg: " -e "Warning: " show >show.gpg &&
 	grep -v "^ " cat | grep -v "^gpgsig " >cat.commit &&
 	test_cmp show.commit commit &&
 	test_cmp show.gpg verify.2 &&