Remove ^L characters hidden randomly in the code. Not those used in text files as delimiters.

While working on a tool that processes Erlang code and testing it against this repo,
I found out about those little sneaky 0xff. I thought it may be of help to other
people build such tools to remove non-conforming-to-standard characters.
Update version numbers for R16B03 development
stdlib: extended binary_module_SUITE to assure badarg for OTP-11350
Merge branch 'msassak/empty-pattern-badarg/OTP-11350' into maint

* msassak/empty-pattern-badarg/OTP-11350:
  stdlib: extended binary_module_SUITE to assure badarg for OTP-11350
  Check all pattern arguments passed to binary:matches/2
Change 'recive' to 'receive' in gen_server.erl

A small spelling correction merely; no functionality change.
Merge branch 'fenollp/treewide_remove_unexpected_0xff/OTP-11323' into maint

* fenollp/treewide_remove_unexpected_0xff/OTP-11323:
  Remove ^L characters hidden randomly in the code. Not those used in text files as delimiters.
Merge branch 'blt/gen_server-typo/OTP-11398' into maint

* blt/gen_server-typo/OTP-11398:
  Change 'recive' to 'receive' in gen_server.erl
Spec for atan2 should be atan2(Y, X), not atan2(X, Y)
Add XML marker for regexp syntax
Merge branch 'asterite/atan2_spec/OTP-11465' into maint

* asterite/atan2_spec/OTP-11465:
  Spec for atan2 should be atan2(Y, X), not atan2(X, Y)
Prepare release