* maint:
  Fix filelib:wildcard/1,2 for patterns containing ".." and/or "@"

Fix filelib:wildcard/1,2 for patterns containing ".." and/or "@"

* sverker/ets-test-cuddle:
  stdlib: Fix ets_SUITE:tabfile_ext4

on machines with long host names.

Move forward the file location interval to corrupt.

An ETS table file corrupted in the header may still be readable
with table content unchanged and that will cause tabfile_ext4 to fail.
The header length increase with long host names and added table options.

`..` was broken and only worked when it was used in the beginning
of the pattern before any wildcard characters. For example:

    1> filelib:wildcard("erts/..").
    ["erts/.."]

Using `..` preceded by wildcard characters would not work:

    1> filelib:wildcard("*/..").
    []

`@` is not a wildcard character but is used internally in `filelib` as
an escape character and was not handled as other literal
characters. That could lead to performance degradation as it disabled
an optimization of the matching of the literal prefix of a pattern. It
would also cause the following example to fail:

    1> filelib:wildcard("@/..").
    []

This commit corrects the handling `..` and also makes sure that the
use of `@` in a pattern does not degrade performance.

https://bugs.erlang.org/browse/ERL-1029

* hasse/remove_old_IO_requests/OTP-15695:
  stdlib: Remove old I/O-requests from test suites
  stdlib (doc): Do not mention old requests
  snmp: Update old format I/O-request
  sasl: Use encoding when reading terms
  parsetools (doc): Update old format I/O-requests
  mnesia: Update old format I/O-request
  kernel: Update old format I/O-requests
  stdlib: Remove no longer used function
  kernel: Remove commented out code
  stdlib: Remove commented out code