Fix timezone detection for php.ini

[tuffnatty]

For some timezones, timezone detection in configure_php_ini() is broken, e.g. here this code returns multiple timezone names for a single MD5 hash:

(TZ=$(md5 -q /etc/localtime); find /usr/share/zoneinfo -type f -print0 | xargs -0 md5 -r | grep "$TZ" )
4790e83465681cefbf852aed265354bf /usr/share/zoneinfo/Europe/Berlin
4790e83465681cefbf852aed265354bf /usr/share/zoneinfo/Europe/Copenhagen
4790e83465681cefbf852aed265354bf /usr/share/zoneinfo/Europe/Oslo
4790e83465681cefbf852aed265354bf /usr/share/zoneinfo/Europe/Stockholm
4790e83465681cefbf852aed265354bf /usr/share/zoneinfo/Arctic/Longyearbyen
4790e83465681cefbf852aed265354bf /usr/share/zoneinfo/Atlantic/Jan_Mayen

The patch skips all entries except the first one.

Changes proposed in this pull request:

-

-

Fixes # .

Checklist:

• [ ] docs up-to-date