Revert "Remove no longer used "log_errors_max_len" ini directive (#6838)"

This reverts commit d2d227e54765a5de863c6608fd64e1228ab08108.

This is an ABI break.

Remove no longer used "log_errors_max_len" ini directive (#6838)

Fix expected error message

These are slightly changed as of PHP 8.0.0.

Fix #80960: opendir() warning wrong info when failed on Windows

Firstly, we must not forget to set appropriate error codes for "manual"
checks in `virtual_file_ex()`.

Secondly,

Fix #80960: opendir() warning wrong info when failed on Windows

Firstly, we must not forget to set appropriate error codes for "manual"
checks in `virtual_file_ex()`.

Secondly, we must not call `php_error_docref2()` for warnings regarding
unary functions; thus, we introduce `php_win32_docref1_from_error()`.

Closes GH-6872.

show more ...