i18n: convert mark error messages for translation

Mark error messages about CRLF for translation.

Update test to reflect changes.

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

convert.c

@@ -197,17 +197,21 @@ static void check_safe_crlf(const char *path, enum crlf_action crlf_action,
 		 * CRLFs would not be restored by checkout
 		 */
 		if (checksafe == SAFE_CRLF_WARN)
-			warning("CRLF will be replaced by LF in %s.\nThe file will have its original line endings in your working directory.", path);
+			warning(_("CRLF will be replaced by LF in %s.\n"
+				  "The file will have its original line"
+				  " endings in your working directory."), path);
 		else /* i.e. SAFE_CRLF_FAIL */
-			die("CRLF would be replaced by LF in %s.", path);
+			die(_("CRLF would be replaced by LF in %s."), path);
 	} else if (old_stats->lonelf && !new_stats->lonelf ) {
 		/*
 		 * CRLFs would be added by checkout
 		 */
 		if (checksafe == SAFE_CRLF_WARN)
-			warning("LF will be replaced by CRLF in %s.\nThe file will have its original line endings in your working directory.", path);
+			warning(_("LF will be replaced by CRLF in %s.\n"
+				  "The file will have its original line"
+				  " endings in your working directory."), path);
 		else /* i.e. SAFE_CRLF_FAIL */
-			die("LF would be replaced by CRLF in %s", path);
+			die(_("LF would be replaced by CRLF in %s"), path);
 	}
 }
 

t/t0020-crlf.sh

@@ -83,7 +83,11 @@ test_expect_success 'safecrlf: print warning only once' '
 	git add doublewarn &&
 	git commit -m "nowarn" &&
 	for w in Oh here is CRLFQ in text; do echo $w; done | q_to_cr >doublewarn &&
-	test $(git add doublewarn 2>&1 | grep "CRLF will be replaced by LF" | wc -l) = 1
+	git add doublewarn 2>err &&
+	if test_have_prereq C_LOCALE_OUTPUT
+	then
+		test $(grep "CRLF will be replaced by LF" err | wc -l) = 1
+	fi
 '