Program already uses time_t everywhere else, use it in last possible place
https://bugs.gentoo.org/919257
--- a/src/vf_access_calendar.c
+++ b/src/vf_access_calendar.c
@@ -226,7 +226,7 @@
  *---------------------------------------------------------------------------*/
 
 bool_t vf_date_string_to_time(
-    uint32_t *p_time,               /* Output time value */
+    time_t *p_time,                 /* Output time value */
     const char *p_string            /* Input string */
     )
 {
@@ -298,7 +298,7 @@
             }
             else
             {
-                *p_time = (uint32_t)t;
+                *p_time = t;
             }
         }
     }
--- a/vformat/vf_iface.h
+++ b/vformat/vf_iface.h
@@ -1203,7 +1203,7 @@
  *---------------------------------------------------------------------------*/
 
 extern VFORMATDECLSPEC bool_t vf_date_string_to_time(
-    uint32_t *p_time,               /* Output time value */
+    time_t *p_time,                 /* Output time value */
     const char *p_string            /* Input string */
     );