Replace local mapl/2 (Erlang < 5.0) unique call by a LC
filelib:wildcard() should show broken symlinks

filelib:wildcard("broken_symlink") would return an empty list if
"broken_symlink" is a symlink that does not point to an existing
file.
Add default value for maps:get
Add docs and test for maps:get/3
stdlib: Fix error message when exporting (redefined) map() type

When redefining and exporting the type map() erl_lint erroneously
emitted an error. This bug has been fixed.
Update kernel, stdlib and sasl appup tests

Add test of update instructions from current major to current
minor. Earlier only previous major to current was tested.
Fix evaluation of map updates in the debugger and erl_eval

Reported-by: José Valim
Merge branch 'bjorn/stdlib/file_lib-wildcard/OTP-11850' into maint

* bjorn/stdlib/file_lib-wildcard/OTP-11850:
  filelib:wildcard() should show broken symlinks
Support path names with characters outside the US ASCII range
Correct end of tape marker

The POSIX standard for tar says that there must be at least
two 512-bytes zero blocks at the end of the tar archive file.

Our implementation would only emit a single 512-byte zero block if the
size of the last file was in the range 18*512 through 19*512-1 (modulo
20*512). GNU tar would correctly unpack such tar archive file, but
would emit a warning:

   tar: A lone zero block at 20
Update information about compatibility

GNU tar now supports the 'ustar' format.
Fix typo in erl_tar docs
Correct typo in type specification

Types start with a lower-case letter.
Merge branch 'siri/cuddle-with-tests' into maint

* siri/cuddle-with-tests:
  Fix regexp in release_handler test so versions are correctly replaced
  Update kernel, stdlib and sasl appup tests
  Minor update to test_server for finding old releases
Merge branch 'bjorn/stdlib/erl_tar/OTP-11854' into maint

* bjorn/stdlib/erl_tar/OTP-11854:
  Correct typo in type specification
  Fix typo in erl_tar docs
  Update information about compatibility
  Correct end of tape marker
  Support path names with characters outside the US ASCII range
Merge branch 'nox/fix-eval-map-update/OTP-11922' into maint

* nox/fix-eval-map-update/OTP-11922:
  Fix evaluation of map updates in the debugger and erl_eval
Merge branch 'fenollp/remove-erl_parse-legacy-map' into maint

* fenollp/remove-erl_parse-legacy-map:
  Replace local mapl/2 (Erlang < 5.0) unique call by a LC
stdlib: Fix indentation of maps doc
Merge branch 'saa/add_default_value_for_maps_get/OTP-11951' into maint

* saa/add_default_value_for_maps_get/OTP-11951:
  stdlib: Fix indentation of maps doc
  Add docs and test for maps:get/3
  Add default value for maps:get
Fix small copy&paste mistakes in doc of alternative process registry