i18n: commit: mark message for translation

Mark message commit_utf8_warn for translation.

Update tests to reflect changes.

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

commit.c

diff --git a/commit.c b/commit.c
index ba6dee3..8eb1707 100644
--- a/commit.c
+++ b/commit.c
@@ -1511,9 +1511,9 @@ static int verify_utf8(struct strbuf *buf)
 }
 
 static const char commit_utf8_warn[] =
-"Warning: commit message did not conform to UTF-8.\n"
-"You may want to amend it after fixing the message, or set the config\n"
-"variable i18n.commitencoding to the encoding your project uses.\n";
+N_("Warning: commit message did not conform to UTF-8.\n"
+   "You may want to amend it after fixing the message, or set the config\n"
+   "variable i18n.commitencoding to the encoding your project uses.\n");
 
 int commit_tree_extended(const char *msg, size_t msg_len,
 			 const unsigned char *tree,
@@ -1566,7 +1566,7 @@ int commit_tree_extended(const char *msg, size_t msg_len,
 
 	/* And check the encoding */
 	if (encoding_is_utf8 && !verify_utf8(&buffer))
-		fprintf(stderr, commit_utf8_warn);
+		fprintf(stderr, _(commit_utf8_warn));
 
 	if (sign_commit && do_sign_commit(&buffer, sign_commit))
 		return -1;

t/t3900-i18n-commit.sh

diff --git a/t/t3900-i18n-commit.sh b/t/t3900-i18n-commit.sh
index 4bf1dbe..3b94283 100755
--- a/t/t3900-i18n-commit.sh
+++ b/t/t3900-i18n-commit.sh
@@ -45,7 +45,7 @@
 	printf "Commit message\n\nInvalid surrogate:\355\240\200\n" \
 		>"$HOME/invalid" &&
 	git commit -a -F "$HOME/invalid" 2>"$HOME"/stderr &&
-	grep "did not conform" "$HOME"/stderr
+	test_i18ngrep "did not conform" "$HOME"/stderr
 '
 
 test_expect_success 'UTF-8 overlong sequences rejected' '
@@ -55,7 +55,7 @@
 	printf "\340\202\251ommit message\n\nThis is not a space:\300\240\n" \
 		>"$HOME/invalid" &&
 	git commit -a -F "$HOME/invalid" 2>"$HOME"/stderr &&
-	grep "did not conform" "$HOME"/stderr
+	test_i18ngrep "did not conform" "$HOME"/stderr
 '
 
 test_expect_success 'UTF-8 non-characters refused' '
@@ -64,7 +64,7 @@
 	printf "Commit message\n\nNon-character:\364\217\277\276\n" \
 		>"$HOME/invalid" &&
 	git commit -a -F "$HOME/invalid" 2>"$HOME"/stderr &&
-	grep "did not conform" "$HOME"/stderr
+	test_i18ngrep "did not conform" "$HOME"/stderr
 '
 
 test_expect_success 'UTF-8 non-characters refused' '
@@ -73,7 +73,7 @@
 	printf "Commit message\n\nNon-character:\357\267\220\n" \
 		>"$HOME/invalid" &&
 	git commit -a -F "$HOME/invalid" 2>"$HOME"/stderr &&
-	grep "did not conform" "$HOME"/stderr
+	test_i18ngrep "did not conform" "$HOME"/stderr
 '
 
 for H in ISO8859-1 eucJP ISO-2022-JP

t/t3901-i18n-patch.sh

diff --git a/t/t3901-i18n-patch.sh b/t/t3901-i18n-patch.sh
index 509084e..f663d56 100755
--- a/t/t3901-i18n-patch.sh
+++ b/t/t3901-i18n-patch.sh
@@ -295,7 +295,7 @@
 
 	# commit-tree will warn that the commit message does not contain valid UTF-8
 	# as mailinfo did not convert it
-	grep "did not conform" err &&
+	test_i18ngrep "did not conform" err &&
 
 	check_encoding 2
 '