Fix incorrect check
Fix incorrect check

pcre_study can return nil and still succeed
The indicator of failure is a non-nil error message

jfhg/Nim,tulayang/Nim,haiodo/Nim,xland/Nim,russpowers/Nim,douglas-larocca/Nim,nimLuckyBull/Nim,singularperturbation/Nim,nanoant/Nim,singularperturbation/Nim,jsanjuas/Nim,endragor/Nim,jfhg/Nim,Dhertz/Nim,jfhg/Nim,dom96/Nim,Salafit/Nim,JCavallo/Nim,Salafit/Nim,judofyr/Nim,haiodo/Nim,xland/Nim,nimLuckyBull/Nim,jsanjuas/Nim,reactormonk/nim,singularperturbation/Nim,singularperturbation/Nim,Dhertz/Nim,nanoant/Nim,nafsaka/Nim,reactormonk/nim,msmith491/Nim,zachaysan/Nim,jfhg/Nim,reactormonk/nim,endragor/Nim,fredericksilva/Nim,bvssvni/Nim,sarvex/Nim-lang,nafsaka/Nim,JCavallo/Nim,JCavallo/Nim,zachaysan/Nim,Matt14916/Nim,greyanubis/Nim,sferik/Nim,reactormonk/nim,JCavallo/Nim,Dhertz/Nim,msmith491/Nim,fredericksilva/Nim,russpowers/Nim,nanoant/Nim,tulayang/Nim,endragor/Nim,dom96/Nim,fmamud/Nim,JCavallo/Nim,Matt14916/Nim,haiodo/Nim,sarvex/Nim-lang,bvssvni/Nim,xland/Nim,Matt14916/Nim,Salafit/Nim,sarvex/Nim-lang,msmith491/Nim,nimLuckyBull/Nim,singularperturbation/Nim,fredericksilva/Nim,endragor/Nim,judofyr/Nim,tmm1/Nim,tulayang/Nim,judofyr/Nim,Senketsu/Nim,endragor/Nim,zachaysan/Nim,Dhertz/Nim,endragor/Nim,judofyr/Nim,BlaXpirit/nre,mbaulch/Nim,tmm1/Nim,Dhertz/Nim,msmith491/Nim,jsanjuas/Nim,Matt14916/Nim,russpowers/Nim,fmamud/Nim,xland/Nim,haiodo/Nim,fmamud/Nim,jfhg/Nim,fredericksilva/Nim,tmm1/Nim,judofyr/Nim,nafsaka/Nim,tmm1/Nim,douglas-larocca/Nim,nafsaka/Nim,zachaysan/Nim,zachaysan/Nim,dom96/Nim,judofyr/Nim,tulayang/Nim,dom96/Nim,zachaysan/Nim,russpowers/Nim,nafsaka/Nim,fmamud/Nim,Senketsu/Nim,bvssvni/Nim,jsanjuas/Nim,Senketsu/Nim,douglas-larocca/Nim,dom96/Nim,Matt14916/Nim,mbaulch/Nim,mbaulch/Nim,nimLuckyBull/Nim,sarvex/Nim-lang,nimLuckyBull/Nim,sferik/Nim,nimLuckyBull/Nim,sarvex/Nim-lang,Matt14916/Nim,Senketsu/Nim,jsanjuas/Nim,sferik/Nim,reactormonk/nim,sarvex/Nim-lang,sferik/Nim,haiodo/Nim,greyanubis/Nim,bvssvni/Nim,jsanjuas/Nim,judofyr/Nim,Salafit/Nim,fredericksilva/Nim,JCavallo/Nim,douglas-larocca/Nim,russpowers/Nim,reactormonk/nim,singularperturbation/Nim,fmamud/Nim,tmm1/Nim,douglas-larocca/Nim,jfhg/Nim,sferik/Nim,Salafit/Nim,haiodo/Nim,mbaulch/Nim,greyanubis/Nim,judofyr/Nim,nanoant/Nim,reactormonk/nim,nanoant/Nim,tulayang/Nim,tulayang/Nim,greyanubis/Nim,Dhertz/Nim,BlaXpirit/nre,bvssvni/Nim,mbaulch/Nim,nanoant/Nim,dom96/Nim,msmith491/Nim,fredericksilva/Nim,nafsaka/Nim,nimLuckyBull/Nim,bvssvni/Nim,tmm1/Nim,JCavallo/Nim,fredericksilva/Nim,singularperturbation/Nim,dom96/Nim,jsanjuas/Nim,tmm1/Nim,Senketsu/Nim,douglas-larocca/Nim,jfhg/Nim,nanoant/Nim,nafsaka/Nim,Dhertz/Nim,msmith491/Nim,mbaulch/Nim,fredericksilva/Nim,greyanubis/Nim,Salafit/Nim,flaviut/nre,fmamud/Nim,greyanubis/Nim,msmith491/Nim,haiodo/Nim,sferik/Nim,xland/Nim,Salafit/Nim,sferik/Nim,bvssvni/Nim,douglas-larocca/Nim,mbaulch/Nim,sarvex/Nim-lang,Senketsu/Nim,xland/Nim,douglas-larocca/Nim,fmamud/Nim,Senketsu/Nim,zachaysan/Nim,russpowers/Nim,Matt14916/Nim,greyanubis/Nim,russpowers/Nim,sferik/Nim,reactormonk/nim,endragor/Nim,xland/Nim