PHPCS: fix up the code base [4] - multi-line function calls

[jrfnl]

Fixes relate to the following rules:

• Each argument in a multiline function call should start on a new line.

Committed in four parts, each commits applies a different solution based on what's most appropriate for the specific code snippets involved.

Please refer to the individual commits for more details.

Related to #73

[jrfnl]

Build failure is unrelated to this PR.

[schlessera]

Test failures unrelated and isolated to WordPress 3.7. Merging anyway.