t5541: become resilient to GETTEXT_POISON

Use test_i18n* functions for testing text already marked for
translation.

Signed-off-by: Vasco Almeida <vascomalmeida@sapo.pt>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t/t5541-http-push-smart.sh

@@ -119,7 +119,7 @@ test_expect_success 'rejected update prints status' '
 	git commit -m dev2 &&
 	test_must_fail git push origin dev2 2>act &&
 	sed -e "/^remote: /s/ *$//" <act >cmp &&
-	test_cmp exp cmp
+	test_i18ncmp exp cmp
 '
 rm -f "$HTTPD_DOCUMENT_ROOT_PATH/test_repo.git/hooks/update"
 
@@ -219,7 +219,7 @@ test_expect_success TTY 'push shows progress when stderr is a tty' '
 	cd "$ROOT_PATH"/test_repo_clone &&
 	test_commit noisy &&
 	test_terminal git push >output 2>&1 &&
-	grep "^Writing objects" output
+	test_i18ngrep "^Writing objects" output
 '
 
 test_expect_success TTY 'push --quiet silences status and progress' '
@@ -233,16 +233,16 @@ test_expect_success TTY 'push --no-progress silences progress but not status' '
 	cd "$ROOT_PATH"/test_repo_clone &&
 	test_commit no-progress &&
 	test_terminal git push --no-progress >output 2>&1 &&
-	grep "^To http" output &&
-	! grep "^Writing objects"
+	test_i18ngrep "^To http" output &&
+	test_i18ngrep ! "^Writing objects"
 '
 
 test_expect_success 'push --progress shows progress to non-tty' '
 	cd "$ROOT_PATH"/test_repo_clone &&
 	test_commit progress &&
 	git push --progress >output 2>&1 &&
-	grep "^To http" output &&
-	grep "^Writing objects" output
+	test_i18ngrep "^To http" output &&
+	test_i18ngrep "^Writing objects" output
 '
 
 test_expect_success 'http push gives sane defaults to reflog' '