Merge branch 'ch/t6300-verify-commit-test-cleanup' into maint-2.42

Test clean-up.

* ch/t6300-verify-commit-test-cleanup:
  t/t6300: drop magic filtering
  t/lib-gpg: forcibly run a trustdb update

t/lib-gpg.sh

@@ -45,6 +45,7 @@ test_lazy_prereq GPG '
 			"$TEST_DIRECTORY"/lib-gpg/keyring.gpg &&
 		gpg --homedir "${GNUPGHOME}" --import-ownertrust \
 			"$TEST_DIRECTORY"/lib-gpg/ownertrust &&
+		gpg --homedir "${GNUPGHOME}" --update-trustdb &&
 		gpg --homedir "${GNUPGHOME}" </dev/null >/dev/null \
 			--sign -u committer@example.com
 		;;

t/t6300-for-each-ref.sh

@@ -1774,10 +1774,7 @@ test_expect_success GPGSSH 'setup for signature atom using ssh' '
 '
 
 test_expect_success GPG2 'bare signature atom' '
-	git verify-commit first-signed 2>out.raw &&
-	grep -Ev "checking the trustdb|PGP trust model" out.raw >out &&
-	head -3 out >expect &&
-	tail -1 out >>expect &&
+	git verify-commit first-signed 2>expect &&
 	echo  >>expect &&
 	git for-each-ref refs/tags/first-signed \
 		--format="%(signature)" >actual &&