Documentation of tracer/2: Use the correct option name 'overload_check'

The implementation and the documentation disagreed on the name
of option.
Merge branch 'maint'

* maint:
  Documentation of tracer/2: Use the correct option name 'overload_check'
fixed typo
Merge branch 'maint'
[observer] Fix copy/paste error in observer_SUITE:app_file/1
Merge branch 'maint'
Prepare release
Merge tag 'OTP_R16B03'

The R16B03 release

Conflicts:
	lib/sasl/vsn.mk