Log Message:
lang/php81: update to 8.1.6

12 May 2022, PHP 8.1.6

- Core:
  . Fixed bug GH-8310 (Registry settings are no longer recognized). (cmb)
  . Fixed potential race condition during resource ID allocation. (ryancaicse)
  . Fixed bug GH-8133 (Preloading of constants containing arrays with enums
    segfaults). (ilutov)
  . Fixed Haiku ZTS builds. (David Carlier)

- Date:
  . Fixed bug GH-7752 (DateTimeZone::getTransitions() returns insufficient
    data). (Derick)
  . Fixed bug GH-8108 (Timezone doesn't work as intended). (Derick)
  . Fixed bug #81660 (DateTimeZone::getTransitions() returns invalid data).
    (Derick)
  . Fixed bug GH-8289 (Exceptions thrown within a yielded from iterator are
    not rethrown into the generator). (Bob)

- FFI:
  . Fixed bug GH-8433 (Assigning function pointers to structs in FFI leaks).
    (Bob)

- FPM:
  . Fixed bug #76003 (FPM /status reports wrong number of active processe).
    (Jakub Zelenka)
  . Fixed bug #77023 (FPM cannot shutdown processes). (Jakub Zelenka)
  . Fixed comment in kqueue remove callback log message. (David Carlier)

- Hash:
  . Fixed bug #81714 (segfault when serializing finalized HashContext). (cmb)

- Iconv:
  . Fixed bug GH-8218 (ob_end_clean does not reset Content-Encoding header).
    (cmb)

- Intl:
  . Fixed bug GH-8364 (msgfmt_format $values may not support references). (cmb)

- MBString:
  . Number of error markers emitted for invalid UTF-8 text matches WHATWG \ 
specification.
    This is a return to the behavior of PHP 8.0 and earlier. (alexdowad)

- MySQLi:
  . Fixed bug GH-8267 (MySQLi uses unsupported format specifier on Windows).
    (cmb)

- SPL:
  . Fixed bug GH-8366 (ArrayIterator may leak when calling __construct()).
    (cmb)
  . Fixed bug GH-8273 (SplFileObject: key() returns wrong value). (Girgias)

- Streams:
  . Fixed php://temp does not preserve file-position when switched to temporary
    file. (Bernd Holzmüller)

- zlib:
  . Fixed bug GH-8218 (ob_end_clean does not reset Content-Encoding header).
    (cmb)