Fix bug found by PHP 7.1 build
Fix bug found by PHP 7.1 build

Since PHP 7.1 calling functions with too few arguments will throw an
exception instead of triggering a warning.

See: https://wiki.php.net/rfc/too_few_args

arvatis/shopware,Pttde/shopware,egoistIT/shopware,giginos/shopware,jochenmanz/shopware,oktupol/shopware,Sunchairs/shopware,philippmahlow/shopware,simkli/shopware,DerRidda/shopware,giginos/shopware,giginos/shopware,JonidBendo/shopware,wolv-dev/shopware,philippmahlow/shopware,VIISON/shopware-4,s-haase/shopware,giginos/shopware,DerRidda/shopware,Pttde/shopware,VIISON/shopware-4,jochenmanz/shopware,wesolowski/shopware,DerRidda/shopware,wolv-dev/shopware,simkli/shopware,simkli/shopware,bcremer/shopware,egoistIT/shopware,k10r/shopware,oktupol/shopware,giginos/shopware,arvatis/shopware,Sunchairs/shopware,jochenmanz/shopware,bcremer/shopware,k10r/shopware,egoistIT/shopware,k10r/shopware,NetInventors/shopware,Sunchairs/shopware,Sunchairs/shopware,NetInventors/shopware,egoistIT/shopware,NetInventors/shopware,JonidBendo/shopware,arvatis/shopware,jhit/shopware,oktupol/shopware,s-haase/shopware,simkli/shopware,k10r/shopware,DerRidda/shopware,NetInventors/shopware,Sunchairs/shopware,wesolowski/shopware,jochenmanz/shopware,wesolowski/shopware,philippmahlow/shopware,wolv-dev/shopware,arvatis/shopware,egoistIT/shopware,oktupol/shopware,oktupol/shopware,NetInventors/shopware,bcremer/shopware,wolv-dev/shopware,JonidBendo/shopware,mreiss/shopware,wesolowski/shopware,mreiss/shopware,mreiss/shopware,Pttde/shopware,jhit/shopware,wolv-dev/shopware,s-haase/shopware,jochenmanz/shopware,mreiss/shopware,jhit/shopware,JonidBendo/shopware,k10r/shopware,philippmahlow/shopware,wesolowski/shopware,bcremer/shopware,DerRidda/shopware,jhit/shopware,JonidBendo/shopware,Pttde/shopware,bcremer/shopware,Pttde/shopware,s-haase/shopware,arvatis/shopware,VIISON/shopware-4,VIISON/shopware-4,jhit/shopware,philippmahlow/shopware,mreiss/shopware,simkli/shopware,VIISON/shopware-4,s-haase/shopware