Description of problem:

Hello,

during development of application, one of our developers found that Africa/Casablanca timezone file is not conformant to the version 2. tzinfo manual page says:

...
   Version 3 format
       For version-3-format timezone files, the POSIX-TZ-style  string  may  use  two  minor
       extensions  to  the  POSIX  TZ format, as described in newtzset(3).  First, the hours
       part of its transition times may be signed and range from -167 through 167 instead of
       the  POSIX-required  unsigned values from 0 through 24.  Second, DST is in effect all
       year if it starts January 1 at 00:00 and ends December 31 at 24:00 plus  the  differ‐
       ence between daylight saving and standard time.
...

Which he interprets that version 2 transition times must be in range 0 - 24, which is not true for Africa/Casablanca

Version-Release number of selected component (if applicable):
tzdata-2021e-1.el8.noarch

How reproducible:
# file /usr/share/zoneinfo/Africa/Casablanca
/usr/share/zoneinfo/Africa/Casablanca: timezone data, version 2, 5 gmt time flags, 5 std time flags, no leap seconds, 95 transition times, 5 abbreviation chars

# head -n 2 /usr/share/zoneinfo/Africa/Casablanca | tail -n 1
<+00>0<+01>,0/0,J365/25

where /25 is hours, which is supposed to be in range 0-24. Can you please fix this somehow, either by saying that Casablanca TZ is version 3 file, or by ensure that hours is in 0-24 range?

If you need any more information, feel free to tell me.

Thank you in advance!


Steps to Reproduce:
1. file /usr/share/zoneinfo/Africa/Casablanca
2. head -n 2 /usr/share/zoneinfo/Africa/Casablanca | tail -n 1

Actual results:
Non-conformant version 2 Casablanca TZ

Expected results:
Casablanca TZ file conforms to either version 2 timezone spec (0-24 hours) or it is converted to version 3