tests, use ute_free() instead of ute_close() to remove tmp files
build, remove tmp files of ax_zoneinfo.m4
Merge remote-tracking branch 'rudi/fixes' into next

# By Ruediger Meier
# Via Ruediger Meier
* rudi/fixes:
  build, remove tmp files of ax_zoneinfo.m4
  tests, use ute_free() instead of ute_close() to remove tmp files