Refactored utils
minor #904 Refactoring Utils (GrahamCampbell)

This PR was merged into the 1.5 branch.

Discussion
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Refactoring Utils

This removes duplication regarding the `calculateIndent` function, adds missing docblocks, and adds tests for the `calculateIndent` function too.

Commits
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e1740dd Refactored utils
Added more phpdoc fixers