Update zoneinfo files to 2023d (#283)

Author: devbww

src/tzfile.h

@@ -21,14 +21,6 @@
 ** Information about time zone files.
 */
 
-#ifndef TZDIR
-# define TZDIR "/usr/share/zoneinfo" /* Time zone object file directory */
-#endif /* !defined TZDIR */
-
-#ifndef TZDEFAULT
-# define TZDEFAULT "/etc/localtime"
-#endif /* !defined TZDEFAULT */
-
 #ifndef TZDEFRULES
 # define TZDEFRULES "posixrules"
 #endif /* !defined TZDEFRULES */

testdata/README.zoneinfo

@@ -22,7 +22,7 @@ New versions can be generated using the following shell script.
                 LOCALTIME=Factory \
                 TZDATA_TEXT= \
                 PACKRATDATA=backzone PACKRATLIST=zone.tab \
-                ZONETABLES=zone1970.tab
+                ZONETABLES=zone1970.tab\ zonenow.tab
     tar --create --dereference --hard-dereference --file tzfile.tar \
         --directory=tz tzfile.h
     tar --create --dereference --hard-dereference --file zoneinfo.tar \

testdata/version

@@ -1 +1 @@
-2023c
+2023d