* Revert "Account for empty string regexp in lineinfile (#41451)"
This reverts commit 4b5b4a760c.
* Use context managers for interacting with files
* Store line and regexp parameters in a variable
* Add warning when regexp is an empty string
* Remove '=' from error messages
* Update warning message and add changelog
* Add tests
* Improve warning message
Offer an equivalent regexp that won't trigger the warning.
Update tests to match new warning.
* Add porting guide entry for lineinfile change
(cherry picked from commit fb55038d75)
The example regarding `include_*` is a bit unclear. First it seems like the v2.4 and v2.5 examples are the same. So I attempted to make the relevant change in the examples more obvious.
label: docsite_pr
(cherry picked from commit 55fd3d62fb)
* Docs refactor as outlined in https://github.com/ansible/proposals/issues/79. Moves content into 'guides'; refactors TOC; fixes CSS; design tweaks to layout and CSS; fixes generated plugin, CLI and module docs to fix links accodingly; more.
* Adding extra blank line for shippable
(cherry picked from commit 373b1dcf59)
