cleanup of the _find method in runtests.py
cleanup of the _find method in runtests.py

we don't need the regex stuff anymore. It is never executed!

kumarkrishna/sympy,lindsayad/sympy,MechCoder/sympy,debugger22/sympy,abloomston/sympy,emon10005/sympy,AunShiLord/sympy,Curious72/sympy,Arafatk/sympy,shikil/sympy,hrashk/sympy,MridulS/sympy,ChristinaZografou/sympy,hargup/sympy,Sumith1896/sympy,sahilshekhawat/sympy,ahhda/sympy,Davidjohnwilson/sympy,kevalds51/sympy,Shaswat27/sympy,pbrady/sympy,atreyv/sympy,wyom/sympy,ga7g08/sympy,beni55/sympy,toolforger/sympy,emon10005/sympy,mcdaniel67/sympy,jaimahajan1997/sympy,postvakje/sympy,Designist/sympy,vipulroxx/sympy,madan96/sympy,AkademieOlympia/sympy,yashsharan/sympy,meghana1995/sympy,wyom/sympy,lidavidm/sympy,sunny94/temp,sampadsaha5/sympy,Titan-C/sympy,jbbskinny/sympy,oliverlee/sympy,kumarkrishna/sympy,wyom/sympy,Mitchkoens/sympy,dqnykamp/sympy,debugger22/sympy,farhaanbukhsh/sympy,Arafatk/sympy,yukoba/sympy,Gadal/sympy,AunShiLord/sympy,rahuldan/sympy,wanglongqi/sympy,ahhda/sympy,saurabhjn76/sympy,skidzo/sympy,abloomston/sympy,sahilshekhawat/sympy,aktech/sympy,dqnykamp/sympy,kaushik94/sympy,abhiii5459/sympy,maniteja123/sympy,pandeyadarsh/sympy,VaibhavAgarwalVA/sympy,cswiercz/sympy,beni55/sympy,farhaanbukhsh/sympy,garvitr/sympy,jamesblunt/sympy,lidavidm/sympy,chaffra/sympy,skidzo/sympy,yashsharan/sympy,AkademieOlympia/sympy,sahilshekhawat/sympy,lindsayad/sympy,AkademieOlympia/sympy,cswiercz/sympy,ahhda/sympy,postvakje/sympy,cswiercz/sympy,kaichogami/sympy,iamutkarshtiwari/sympy,grevutiu-gabriel/sympy,madan96/sympy,rahuldan/sympy,hargup/sympy,kmacinnis/sympy,MridulS/sympy,sunny94/temp,hrashk/sympy,yashsharan/sympy,saurabhjn76/sympy,Titan-C/sympy,maniteja123/sympy,Mitchkoens/sympy,mafiya69/sympy,atsao72/sympy,Sumith1896/sympy,bukzor/sympy,mafiya69/sympy,kmacinnis/sympy,atreyv/sympy,atreyv/sympy,VaibhavAgarwalVA/sympy,jerli/sympy,jaimahajan1997/sympy,sahmed95/sympy,abloomston/sympy,kmacinnis/sympy,iamutkarshtiwari/sympy,MechCoder/sympy,iamutkarshtiwari/sympy,wanglongqi/sympy,grevutiu-gabriel/sympy,ga7g08/sympy,sunny94/temp,mcdaniel67/sympy,MridulS/sympy,farhaanbukhsh/sympy,meghana1995/sympy,wanglongqi/sympy,diofant/diofant,toolforger/sympy,asm666/sympy,jbbskinny/sympy,cccfran/sympy,Titan-C/sympy,liangjiaxing/sympy,yukoba/sympy,Curious72/sympy,garvitr/sympy,oliverlee/sympy,Sumith1896/sympy,kaichogami/sympy,Designist/sympy,Curious72/sympy,dqnykamp/sympy,Vishluck/sympy,vipulroxx/sympy,pbrady/sympy,emon10005/sympy,cccfran/sympy,debugger22/sympy,sampadsaha5/sympy,kevalds51/sympy,ga7g08/sympy,jamesblunt/sympy,jerli/sympy,Mitchkoens/sympy,liangjiaxing/sympy,drufat/sympy,drufat/sympy,abhiii5459/sympy,AunShiLord/sympy,kaushik94/sympy,pandeyadarsh/sympy,shikil/sympy,Arafatk/sympy,Davidjohnwilson/sympy,skirpichev/omg,mcdaniel67/sympy,ChristinaZografou/sympy,oliverlee/sympy,maniteja123/sympy,yukoba/sympy,bukzor/sympy,jaimahajan1997/sympy,sahmed95/sympy,ChristinaZografou/sympy,Davidjohnwilson/sympy,kaichogami/sympy,kevalds51/sympy,aktech/sympy,Gadal/sympy,meghana1995/sympy,mafiya69/sympy,Shaswat27/sympy,shipci/sympy,aktech/sympy,MechCoder/sympy,asm666/sympy,chaffra/sympy,drufat/sympy,hrashk/sympy,jamesblunt/sympy,saurabhjn76/sympy,moble/sympy,asm666/sympy,atsao72/sympy,liangjiaxing/sympy,madan96/sympy,beni55/sympy,hargup/sympy,Designist/sympy,shipci/sympy,garvitr/sympy,sampadsaha5/sympy,kaushik94/sympy,grevutiu-gabriel/sympy,souravsingh/sympy,rahuldan/sympy,skidzo/sympy,souravsingh/sympy,moble/sympy,atsao72/sympy,jerli/sympy,kumarkrishna/sympy,cccfran/sympy,Gadal/sympy,abhiii5459/sympy,lindsayad/sympy,bukzor/sympy,sahmed95/sympy,pandeyadarsh/sympy,shipci/sympy,souravsingh/sympy,Shaswat27/sympy,moble/sympy,VaibhavAgarwalVA/sympy,vipulroxx/sympy,shikil/sympy,postvakje/sympy,jbbskinny/sympy,toolforger/sympy,Vishluck/sympy,chaffra/sympy,lidavidm/sympy,pbrady/sympy,Vishluck/sympy