* raimo/kernel/gen_statem-progress/OTP-14114:
  Make code_change/4 optional
  Implement fallback for terminate/3
  Clarify code_change and callback mode change
  Stop pampering with stacktraces
  Clean up timer handling
  Remove event timer optimization
  Clean up timer handling
  Reduce number of loop variables hence code mass
  Optimize by using async cancel_timer
  Bugfix: callback mode not cached after code change
  Implement repeat_state and repeat_state_and_data
  Correct type checking function for action {next_event,,}
  Change arity of type to init_result/1

* siri/sys/get_modules/ERL-367/OTP-14248:
  Correct documentation of get_modules message

zip: Fix bugs ERL-348 and ERL-349

OTP-14246

Make sure that zip:extract() and zip:create() closes the zip
file if there is an error.

ERL-349

There is unfinished code in the zip module to handle the
extra field in the central-directory header for each
file. The code to extract an Unix extra subfield is incorrect
and always causes a bad_unix_extra_field error. A further
flaw in the code is that it expects that there is only
a single subfield.

Correcting the code for extracting extra subfields will not do any
good, because the extracted data is ignored. In fact, not even the
file times extracted from DOS file times are used for some reason.

Therefore, don't correct the unfinished code. Remove it completely.

(If needed, extending zip to use file times and to use the information
in the extra field should be done in a major release, not in a
maintenance release.)

ERL-348