minor #1269 various cleanups (cordoval)

This PR was squashed before being merged into the master branch (closes #1269).

Discussion
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various cleanups

fix bool -> Boolean for consistency in other parts of twig's code removing
assignment to n as it is never used fix typo and docblock for consistency
remove line break not needed for consistency fix array docblock for
consistency

Commits
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cb651e8 various cleanups