reset: add test cases for "--keep" option

diff --git a/date.c b/date.c
index 5d05ef61cfb140f004702a5ed614afa755c50670..45f3684ceee465170a520ecf5f25dcaa0e5ed84e 100644 (file)
--- a/date.c
+++ b/date.c
@@ -9,7 +9,7 @@
 /*
  * This is like mktime, but without normalization of tm_wday and tm_yday.
  */
-time_t tm_to_time_t(const struct tm *tm)
+static time_t tm_to_time_t(const struct tm *tm)
 {
        static const int mdays[] = {
            0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334