polyroots: chop small numbers in "cleanup" mode
polyroots: chop small numbers in "cleanup" mode

Previously only small real or imaginary parts were chopped. But if abs(x) is
close to zero, we want to chop this case as well.

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