parse-options.c: mark more strings for translation

One error is updated to start with lowercase to be consistent with the
rest.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

parse-options.c

@@ -319,8 +319,8 @@ is_abbreviated:
 	}
 
 	if (ambiguous_option) {
-		error("Ambiguous option: %s "
-			"(could be --%s%s or --%s%s)",
+		error(_("ambiguous option: %s "
+			"(could be --%s%s or --%s%s)"),
 			arg,
 			(ambiguous_flags & OPT_UNSET) ?  "no-" : "",
 			ambiguous_option->long_name,
@@ -353,7 +353,7 @@ static void check_typos(const char *arg, const struct option *options)
 		return;
 
 	if (starts_with(arg, "no-")) {
-		error ("did you mean `--%s` (with two dashes ?)", arg);
+		error(_("did you mean `--%s` (with two dashes ?)"), arg);
 		exit(129);
 	}
 
@@ -361,7 +361,7 @@ static void check_typos(const char *arg, const struct option *options)
 		if (!options->long_name)
 			continue;
 		if (starts_with(options->long_name, arg)) {
-			error ("did you mean `--%s` (with two dashes ?)", arg);
+			error(_("did you mean `--%s` (with two dashes ?)"), arg);
 			exit(129);
 		}
 	}
@@ -644,11 +644,11 @@ int parse_options(int argc, const char **argv, const char *prefix,
 		break;
 	default: /* PARSE_OPT_UNKNOWN */
 		if (ctx.argv[0][1] == '-') {
-			error("unknown option `%s'", ctx.argv[0] + 2);
+			error(_("unknown option `%s'"), ctx.argv[0] + 2);
 		} else if (isascii(*ctx.opt)) {
-			error("unknown switch `%c'", *ctx.opt);
+			error(_("unknown switch `%c'"), *ctx.opt);
 		} else {
-			error("unknown non-ascii option in string: `%s'",
+			error(_("unknown non-ascii option in string: `%s'"),
 			      ctx.argv[0]);
 		}
 		usage_with_options(usagestr, options);

t/t0040-parse-options.sh

@@ -228,7 +228,7 @@ EOF
 test_expect_success 'detect possible typos' '
 	test_must_fail test-tool parse-options -boolean >output 2>output.err &&
 	test_must_be_empty output &&
-	test_cmp typo.err output.err
+	test_i18ncmp typo.err output.err
 '
 
 cat >typo.err <<\EOF
@@ -238,7 +238,7 @@ EOF
 test_expect_success 'detect possible typos' '
 	test_must_fail test-tool parse-options -ambiguous >output 2>output.err &&
 	test_must_be_empty output &&
-	test_cmp typo.err output.err
+	test_i18ncmp typo.err output.err
 '
 
 test_expect_success 'keep some options as arguments' '