Merge branch 4-0-stable of github.com:lifo/docrails [ci skip]
Revert "Correct formatting for remaining booleans"

It is not in the contract that flags have to be singletons,
the use of regular font indicates that.

This reverts commit 80036f9a5341bd831d125dc684841a8433d92070.
Revert "Consistent use of code syntax formatting for boolean values"

Same rationale as previous revert.

This reverts commit 887225e69b6cdd27f00cf043c4ac918ca5e18cbf.
Merge pull request #10401 from frodsan/merge_docrails

Merge docrails in 4-0-stable