patch, 4 partsi18n: diff: mark warnings for translation

apply.c, t/t4254-am-corrupt.sh

diff --git a/apply.c b/apply.c
index 8215874..705cf56 100644
--- a/apply.c
+++ b/apply.c
@@ -1586,8 +1586,8 @@ static int find_header(struct apply_state *state,
 				patch->new_name = xstrdup(patch->def_name);
 			}
 			if (!patch->is_delete && !patch->new_name) {
-				error("git diff header lacks filename information "
-					     "(line %d)", state->linenr);
+				error(_("git diff header lacks filename information "
+					     "(line %d)"), state->linenr);
 				return -128;
 			}
 			patch->is_toplevel_relative = 1;
diff --git a/t/t4254-am-corrupt.sh b/t/t4254-am-corrupt.sh
index 9bd7dd2..168739c 100755
--- a/t/t4254-am-corrupt.sh
+++ b/t/t4254-am-corrupt.sh
@@ -31,7 +31,7 @@ test_expect_success 'try to apply corrupted patch' '
 test_expect_success 'compare diagnostic; ensure file is still here' '
 	echo "error: git diff header lacks filename information (line 4)" >expected &&
 	test_path_is_file f &&
-	test_cmp expected actual
+	test_i18ncmp expected actual
 '
 
 test_done

diff --git a/diff.c b/diff.c
index 1d304e0..1687317 100644
--- a/diff.c
+++ b/diff.c
@@ -4638,25 +4638,25 @@ static int is_summary_empty(const struct diff_queue_struct *q)
 }
 
 static const char rename_limit_warning[] =
-"inexact rename detection was skipped due to too many files.";
+N_("inexact rename detection was skipped due to too many files.");
 
 static const char degrade_cc_to_c_warning[] =
-"only found copies from modified paths due to too many files.";
+N_("only found copies from modified paths due to too many files.");
 
 static const char rename_limit_advice[] =
-"you may want to set your %s variable to at least "
-"%d and retry the command.";
+N_("you may want to set your %s variable to at least "
+   "%d and retry the command.");
 
 void diff_warn_rename_limit(const char *varname, int needed, int degraded_cc)
 {
 	if (degraded_cc)
-		warning(degrade_cc_to_c_warning);
+		warning(_(degrade_cc_to_c_warning));
 	else if (needed)
-		warning(rename_limit_warning);
+		warning(_(rename_limit_warning));
 	else
 		return;
 	if (0 < needed && needed < 32767)
-		warning(rename_limit_advice, varname, needed);
+		warning(_(rename_limit_advice), varname, needed);
 }
 
 void diff_flush(struct diff_options *options)

convert.c, t/t0020-crlf.sh

diff --git a/convert.c b/convert.c
index 077f5e6..0ad39b1 100644
--- a/convert.c
+++ b/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);
 	}
 }
 
diff --git a/t/t0020-crlf.sh b/t/t0020-crlf.sh
index f94120a..71350e0 100755
--- a/t/t0020-crlf.sh
+++ b/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
 '
 
 

diff --git a/credential-cache--daemon.c b/credential-cache--daemon.c
index 1e5f16a..46c5937 100644
--- a/credential-cache--daemon.c
+++ b/credential-cache--daemon.c
@@ -219,11 +219,11 @@ static void serve_cache(const char *socket_path, int debug)
 	close(fd);
 }
 
-static const char permissions_advice[] =
+static const char permissions_advice[] = N_(
 "The permissions on your socket directory are too loose; other\n"
 "users may be able to read your cached credentials. Consider running:\n"
 "\n"
-"	chmod 0700 %s";
+"	chmod 0700 %s");
 static void init_socket_directory(const char *path)
 {
 	struct stat st;
@@ -232,7 +232,7 @@ static void init_socket_directory(const char *path)
 
 	if (!stat(dir, &st)) {
 		if (st.st_mode & 077)
-			die(permissions_advice, dir);
+			die(_(permissions_advice), dir);
 	} else {
 		/*
 		 * We must be sure to create the directory with the correct mode,