Make return value of string_date const

diff --git a/tig.c b/tig.c
index 3f4a6f6d57f9467f01dbe4d371c009545f6dd871..fc7e8c35e9644b2ccc765564d7211cf15c93c67b 100644 (file)
--- a/tig.c
+++ b/tig.c
@@ -401,7 +401,7 @@ static const struct enum_map date_map[] = {
 #undef DATE_
 };
 
-static char *
+static const char *
 string_date(const time_t *time, enum date date)
 {
        static char buf[DATE_COLS + 1];