minor #2162 fix docblock (xabbuh)
minor #2162 fix docblock (xabbuh)

This PR was merged into the 1.x branch.

Discussion
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fix docblock

Commits
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f93b703 fix docblock

nicolas-grekas/Twig,twigphp/Twig,gencer/Twig,gamernetwork/Twig,nicolas-grekas/Twig,gencer/Twig,nicolas-grekas/Twig,twigphp/Twig,nicolas-grekas/Twig,gamernetwork/Twig,gamernetwork/Twig,nicolas-grekas/Twig,twigphp/Twig