Workaround another buggy PHP warning
Workaround another buggy PHP warning

Added error-suppression to the `is_executable($path)` call, too, per the bug noted just above.

The cited issue manifests as such without it:

```
ErrorException in ExecutableFinder.php line 63:
is_executable(): open_basedir restriction in effect. File(/usr/share/php) is not within the allowed path(s): (/usr/share/php:/tmp:/usr/share/phpmyadmin:/etc/phpmyadmin:/var/lib/phpmyadmin:/usr/local/zend/var/zray/extensions:/usr/local/zend/share:/usr/local/zend/var/plugins)
```
zcodes/symfony,csarrazi/symfony,mvhirsch/symfony,curry684/symfony,lemoinem/symfony,fabpot/symfony,codeclimate-testing/symfony,mnapoli/symfony,romaricdrigon/symfony,lstrojny/symfony,mvhirsch/symfony,Taluu/symfony,joelwurtz/symfony,oleg-andreyev/symfony,xabbuh/symfony,alekitto/symfony,damienalexandre/symfony,mvhirsch/symfony,josephdpurcell/symfony,derrabus/symfony,mpdude/symfony,apfelbox/symfony,hacfi/symfony,Ener-Getick/symfony,WhiteEagle88/symfony,hiddewie/symfony,dosten/symfony,SpacePossum/symfony,ro0NL/symfony,romainneutron/symfony,nasimnabavi/symfony,e-moe/symfony,yceruto/symfony,apetitpa/symfony,SaschaDens/symfony,stof/symfony,teohhanhui/symfony,dmaicher/symfony,jameshalsall/symfony,romainneutron/symfony,deguif/symfony,mihai-stancu/symfony,Triiistan/symfony,Amo/symfony,havvg/symfony,josephdpurcell/symfony,docteurklein/symfony,mihai-stancu/symfony,joelwurtz/symfony,zorn-v/symfony,mihai-stancu/symfony,jvasseur/symfony,patrick-mcdougle/symfony,hiddewie/symfony,Slamdunk/symfony,Aliance/symfony,dbu/symfony,mnapoli/symfony,mickaelandrieu/symfony,OndraM/symfony,ajgarlag/symfony,hhamon/symfony,jean-gui/symfony,mihai-stancu/symfony,havvg/symfony,hason/symfony,garak/symfony,Koc/symfony,backbone87/symfony,WouterJ/symfony,tucksaun/symfony,smatyas/symfony,sroze/symfony,c960657/symfony,romaricdrigon/symfony,iltar/symfony,pierredup/symfony,hhamon/symfony,okdana/symfony,stof/symfony,d-ph/symfony,ragboyjr/symfony,pyrech/symfony,Padam87/symfony,Soullivaneuh/symfony,patrick-mcdougle/symfony,backbone87/symfony,paradajozsef/symfony,Amo/symfony,sstok/symfony,weaverryan/symfony,Soullivaneuh/symfony,Amo/symfony,maidmaid/symfony,klandaika/symfony,zerkms/symfony,frankdejonge/symfony,jjanvier/symfony,ajgarlag/symfony,zerustech/symfony,MatTheCat/symfony,jvasseur/symfony,Tobion/symfony,apfelbox/symfony,patrick-mcdougle/symfony,phramz/symfony,mickaelandrieu/symfony,docteurklein/symfony,mvhirsch/symfony,aeoris/symfony,michaelperrin/symfony,tucksaun/symfony,apfelbox/symfony,iltar/symfony,nasimnabavi/symfony,lyrixx/symfony,kbond/symfony,dmaicher/symfony,dmaicher/symfony,iltar/symfony,hhamon/symfony,dzuelke/symfony,mvhirsch/symfony,iltar/symfony,WouterJ/symfony,backbone87/symfony,dzuelke/symfony,Engerim/symfony,lstrojny/symfony,hiddewie/symfony,inso/symfony,ajgarlag/symfony,mpdude/symfony,unexge/symfony,ragboyjr/symfony,jakubsacha/symfony,klandaika/symfony,voronkovich/symfony,paradajozsef/symfony,chrisguitarguy/symfony,shieldo/symfony,Strate/symfony,OskarStark/symfony,zerustech/symfony,jameshalsall/symfony,HeahDude/symfony,teohhanhui/symfony,fabpot/symfony,d-ph/symfony,Tobion/symfony,aeoris/symfony,weaverryan/symfony,unexge/symfony,GuilhemN/symfony,fabpot/symfony,lemoinem/symfony,chrisguitarguy/symfony,apfelbox/symfony,codeclimate-testing/symfony,arjenm/symfony,hason/symfony,zorn-v/symfony,garak/symfony,mweimerskirch/symfony,SpacePossum/symfony,apfelbox/symfony,pamil/symfony,MatTheCat/symfony,GuilhemN/symfony,inso/symfony,1ed/symfony,shieldo/symfony,Padam87/symfony,maidmaid/symfony,xabbuh/symfony,WhiteEagle88/symfony,klandaika/symfony,WouterJ/symfony,sgehrig/symfony,phramz/symfony,romainneutron/symfony,curry684/symfony,jakzal/symfony,shieldo/symfony,lemoinem/symfony,okdana/symfony,paradajozsef/symfony,dmaicher/symfony,Engerim/symfony,e-moe/symfony,dosten/symfony,SpacePossum/symfony,gnat42/symfony,dosten/symfony,sroze/symfony,Padam87/symfony,Simperfit/symfony,codeclimate-testing/symfony,mihai-stancu/symfony,deguif/symfony,kbond/symfony,jakzal/symfony,gnat42/symfony,SaschaDens/symfony,mnapoli/symfony,damienalexandre/symfony,romaricdrigon/symfony,Einenlum/symfony,docteurklein/symfony,jakubsacha/symfony,ragboyjr/symfony,romaricdrigon/symfony,oleg-andreyev/symfony,Koc/symfony,sstok/symfony,jameshalsall/symfony,nasimnabavi/symfony,apetitpa/symfony,gencer/symfony,chrisguitarguy/symfony,OskarStark/symfony,mpdude/symfony,HeahDude/symfony,smatyas/symfony,HeahDude/symfony,vincentaubert/symfony,SpacePossum/symfony,vincentaubert/symfony,WhiteEagle88/symfony,Triiistan/symfony,jvasseur/symfony,dunglas/symfony,lepiaf/symfony,klandaika/symfony,Pierstoval/symfony,jean-gui/symfony,damienalexandre/symfony,Taluu/symfony,Deamon/symfony,jakzal/symfony,Einenlum/symfony,inso/symfony,SpacePossum/symfony,zerkms/symfony,jderusse/symfony,maidmaid/symfony,jzawadzki/symfony,pyrech/symfony,SaschaDens/symfony,pamil/symfony,chalasr/symfony,nicolas-grekas/symfony,d-ph/symfony,Taluu/symfony,andreia/symfony,mweimerskirch/symfony,sgehrig/symfony,Slamdunk/symfony,mweimerskirch/symfony,Ener-Getick/symfony,hacfi/symfony,c960657/symfony,sstok/symfony,romainneutron/symfony,mnapoli/symfony,gimler/symfony,sstok/symfony,Koc/symfony,Padam87/symfony,d-ph/symfony,Ener-Getick/symfony,zerkms/symfony,gencer/symfony,phramz/symfony,alekitto/symfony,gonzalovilaseca/symfony,GuilhemN/symfony,dbu/symfony,pyrech/symfony,mickaelandrieu/symfony,jzawadzki/symfony,lyrixx/symfony,lyrixx/symfony,andrerom/symfony,zerustech/symfony,yceruto/symfony,yceruto/symfony,docteurklein/symfony,Ener-Getick/symfony,jakubsacha/symfony,docteurklein/symfony,gnat42/symfony,SaschaDens/symfony,lyrixx/symfony,mickaelandrieu/symfony,lemoinem/symfony,Ener-Getick/symfony,HeahDude/symfony,DavidGarciaCat/symfony,nicolas-grekas/symfony,tgalopin/symfony,Simperfit/symfony,michaelperrin/symfony,GuilhemN/symfony,arjenm/symfony,zorn-v/symfony,SaschaDens/symfony,stof/symfony,k0pernikus/symfony,vincentaubert/symfony,havvg/symfony,voronkovich/symfony,jean-gui/symfony,1ed/symfony,havvg/symfony,tucksaun/symfony,okdana/symfony,patrick-mcdougle/symfony,csarrazi/symfony,derrabus/symfony,oleg-andreyev/symfony,nasimnabavi/symfony,Pierstoval/symfony,dbu/symfony,aeoris/symfony,chalasr/symfony,OndraM/symfony,zcodes/symfony,Soullivaneuh/symfony,chalasr/symfony,stof/symfony,kbond/symfony,pierredup/symfony,xabbuh/symfony,symfony/symfony,jean-gui/symfony,sroze/symfony,jameshalsall/symfony,Taluu/symfony,michaelperrin/symfony,jameshalsall/symfony,neemzy/symfony,ogizanagi/symfony,tgalopin/symfony,ogizanagi/symfony,bendavies/symfony,zerkms/symfony,tucksaun/symfony,andreia/symfony,Slamdunk/symfony,lepiaf/symfony,OndraM/symfony,1ed/symfony,Deamon/symfony,derrabus/symfony,Amo/symfony,mpdude/symfony,ajgarlag/symfony,ogizanagi/symfony,k0pernikus/symfony,jjanvier/symfony,maidmaid/symfony,hason/symfony,gnat42/symfony,localheinz/symfony,ro0NL/symfony,Slamdunk/symfony,jjanvier/symfony,derrabus/symfony,localheinz/symfony,unexge/symfony,OndraM/symfony,nicolas-grekas/symfony,codeclimate-testing/symfony,GuilhemN/symfony,Simperfit/symfony,chrisguitarguy/symfony,garak/symfony,localheinz/symfony,hiddewie/symfony,gencer/symfony,phramz/symfony,jjanvier/symfony,jzawadzki/symfony,gonzalovilaseca/symfony,gonzalovilaseca/symfony,hhamon/symfony,bendavies/symfony,xabbuh/symfony,k0pernikus/symfony,jderusse/symfony,andrerom/symfony,gimler/symfony,zorn-v/symfony,k0pernikus/symfony,jderusse/symfony,joelwurtz/symfony,jjanvier/symfony,Deamon/symfony,dunglas/symfony,pamil/symfony,dbu/symfony,Nyholm/symfony,MatTheCat/symfony,hiddewie/symfony,pamil/symfony,mweimerskirch/symfony,sroze/symfony,andrerom/symfony,MatTheCat/symfony,pierredup/symfony,arjenm/symfony,e-moe/symfony,joelwurtz/symfony,andreia/symfony,Aliance/symfony,Engerim/symfony,alekitto/symfony,curry684/symfony,Deamon/symfony,ro0NL/symfony,dbu/symfony,gonzalovilaseca/symfony,pierredup/symfony,smatyas/symfony,josephdpurcell/symfony,teohhanhui/symfony,klandaika/symfony,havvg/symfony,lemoinem/symfony,andreia/symfony,dosten/symfony,dzuelke/symfony,romainneutron/symfony,Aliance/symfony,symfony/symfony,andrerom/symfony,jakubsacha/symfony,sgehrig/symfony,Triiistan/symfony,zcodes/symfony,teohhanhui/symfony,damienalexandre/symfony,Tobion/symfony,Simperfit/symfony,e-moe/symfony,Nyholm/symfony,unexge/symfony,zcodes/symfony,Padam87/symfony,curry684/symfony,apetitpa/symfony,dunglas/symfony,Nyholm/symfony,csarrazi/symfony,sstok/symfony,Koc/symfony,Strate/symfony,Einenlum/symfony,Nyholm/symfony,DavidGarciaCat/symfony,voronkovich/symfony,sgehrig/symfony,c960657/symfony,jakzal/symfony,vincentaubert/symfony,dzuelke/symfony,OskarStark/symfony,chalasr/symfony,dosten/symfony,zerustech/symfony,michaelperrin/symfony,neemzy/symfony,tgalopin/symfony,DavidGarciaCat/symfony,frankdejonge/symfony,ragboyjr/symfony,hacfi/symfony,OndraM/symfony,symfony/symfony,smatyas/symfony,c960657/symfony,arjenm/symfony,Soullivaneuh/symfony,kbond/symfony,deguif/symfony,shieldo/symfony,Strate/symfony,OskarStark/symfony,smatyas/symfony,zerustech/symfony,lepiaf/symfony,Soullivaneuh/symfony,Simperfit/symfony,chrisguitarguy/symfony,lstrojny/symfony,Einenlum/symfony,localheinz/symfony,Pierstoval/symfony,patrick-mcdougle/symfony,Triiistan/symfony,apetitpa/symfony,deguif/symfony,neemzy/symfony,pyrech/symfony,frankdejonge/symfony,symfony/symfony,jakubsacha/symfony,mnapoli/symfony,Tobion/symfony,mickaelandrieu/symfony,ogizanagi/symfony,k0pernikus/symfony,oleg-andreyev/symfony,jderusse/symfony,dzuelke/symfony,paradajozsef/symfony,jvasseur/symfony,bendavies/symfony,Deamon/symfony,nicolas-grekas/symfony,alekitto/symfony,Triiistan/symfony,inso/symfony,voronkovich/symfony,tgalopin/symfony,weaverryan/symfony,frankdejonge/symfony,bendavies/symfony,weaverryan/symfony,Pierstoval/symfony,gimler/symfony,Ener-Getick/symfony,garak/symfony,fabpot/symfony,unexge/symfony,inso/symfony,mweimerskirch/symfony,gimler/symfony,ro0NL/symfony,Amo/symfony,1ed/symfony,yceruto/symfony