minor #2937 Travis: execute 5.3 job on precise (keradus)
minor #2937 Travis: execute 5.3 job on precise (keradus)

This PR was merged into the 2.2 branch.

Discussion
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Travis: execute 5.3 job on precise

as it;s not working on trusty

Commits
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8e43516d Travis: execute 5.3 job on precise

gharlan/PHP-CS-Fixer,keradus/PHP-CS-Fixer,SpacePossum/PHP-CS-Fixer,SpacePossum/PHP-CS-Fixer,Slamdunk/PHP-CS-Fixer,Slamdunk/PHP-CS-Fixer,kubawerlos/PHP-CS-Fixer,gharlan/PHP-CS-Fixer,Soullivaneuh/PHP-CS-Fixer,kubawerlos/PHP-CS-Fixer,GrahamCampbell/PHP-CS-Fixer,FriendsOfPHP/PHP-CS-Fixer,Soullivaneuh/PHP-CS-Fixer,keradus/PHP-CS-Fixer,FriendsOfPHP/PHP-CS-Fixer,GrahamCampbell/PHP-CS-Fixer