[zendframework/zf2#6576] do not use short array syntax
[zendframework/zf2#6576] do not use short array syntax

- as we still support 5.3.

zf2timo/zend-validator,zendframework/zend-validator,Maks3w/zend-validator,weierophinney/zend-validator,ezimuel/zend-validator,akrabat/zend-validator,svycka/zend-validator