The ~p format specifier made file:consult/1 hysterically slow on one
of our test machines that had a unicode character in the root of the
code path; all paths were printed as lists and indented with way too
much whitespace.

Using ~w avoids this issue by never indenting.

* maint-20:
  Updated OTP version
  Update release notes
  Update version numbers
  erts: Add system_flags(erts_alloc,"+M?sbct *")
  erts: Add age order first fit allocator strategies
  erts: Refactor erl_ao_firstfit_alloc
  erts: Add migration options "acnl" and "acfml"
  kernel: Add os:cmd/2 with max_size option
  erts: Add more stats for mbcs_pool
  erts: Fix alloc_SUITE:migration
  stdlib: Make ets_SUITE memory check try again
  erts: Improve carrier pool search
  erts: Improve alloc_SUITE:migration
  erts: Refactor carrier dealloc migration

into 'sverker/maint-20/alloc-n-migration/ERIERL-88'

OTP-14915
OTP-14916
OTP-14917
OTP-14918

ageffcaoff: Age First Fit Carrier, Address Order First Fit (within carrier)
ageffcbf  : Age First Fit Carrier, Best Fit (within carrier)
ageffcaobf: Age First Fit Carrier, Address Order Best Fit (within carrier)

Prefer old carriers, the older the better.

The previous implementation generated a term, converted it to plain
text with io_lib:format/2, and then converted that to a binary
before writing it to disk.

We now emit the term as we go, which should make it a bit safer to
extract this information under load.