Tags: pkdevbox/cache

Fix scrutinizer warnings in several packages.

Scrutinizer found a few undefined variable issues and ambiguous boolean
casting issues which I've fixed here.

Merge branch 'master' into 3.1

Fix incorrect use of empty().

These are all places where '0' is a valid value that we were previously
mis-handling.

Refs #7329

better formatting for api generation

Remove unused code.

Scrutinizer was helpful in finding these.

Remove unused code.

Scrutinizer was helpful in finding these.

Remove unused code.

Scrutinizer was helpful in finding these.

Fix a few things that scrutinizer complains about.

* Consistent return types.
* Handle 'error' cases better.

Fix a few things that scrutinizer complains about.

* Consistent return types.
* Handle 'error' cases better.

Fix a few things that scrutinizer complains about.

* Consistent return types.
* Handle 'error' cases better.