gruntz.py: improved code style
gruntz.py: improved code style

Made a few code style changes like "e=f" to "e = f" to conform to the python
code style guide.

Signed-off-by: Ondrej Certik <b816faa87b7d35274d2e545c5be11ed4376f3ccf@certik.cz>

meghana1995/sympy,Shaswat27/sympy,oliverlee/sympy,Titan-C/sympy,aktech/sympy,jaimahajan1997/sympy,cccfran/sympy,emon10005/sympy,Gadal/sympy,ahhda/sympy,vipulroxx/sympy,mcdaniel67/sympy,kumarkrishna/sympy,mattpap/sympy-polys,Mitchkoens/sympy,Shaswat27/sympy,saurabhjn76/sympy,chaffra/sympy,atreyv/sympy,shipci/sympy,pbrady/sympy,liangjiaxing/sympy,kumarkrishna/sympy,ChristinaZografou/sympy,postvakje/sympy,lindsayad/sympy,Arafatk/sympy,sahmed95/sympy,fperez/sympy,VaibhavAgarwalVA/sympy,MridulS/sympy,skidzo/sympy,jerli/sympy,AkademieOlympia/sympy,AunShiLord/sympy,sahmed95/sympy,sahilshekhawat/sympy,sunny94/temp,jerli/sympy,pandeyadarsh/sympy,Arafatk/sympy,kevalds51/sympy,cccfran/sympy,wyom/sympy,VaibhavAgarwalVA/sympy,kmacinnis/sympy,minrk/sympy,kaichogami/sympy,jbbskinny/sympy,saurabhjn76/sympy,asm666/sympy,yashsharan/sympy,amitjamadagni/sympy,maniteja123/sympy,hargup/sympy,Designist/sympy,dqnykamp/sympy,iamutkarshtiwari/sympy,kaushik94/sympy,pbrady/sympy,sunny94/temp,chaffra/sympy,madan96/sympy,wyom/sympy,lidavidm/sympy,bukzor/sympy,atsao72/sympy,Curious72/sympy,kaichogami/sympy,hrashk/sympy,drufat/sympy,dqnykamp/sympy,ga7g08/sympy,Vishluck/sympy,skidzo/sympy,Titan-C/sympy,yukoba/sympy,wanglongqi/sympy,hargup/sympy,saurabhjn76/sympy,jamesblunt/sympy,MechCoder/sympy,sampadsaha5/sympy,MechCoder/sympy,MridulS/sympy,Davidjohnwilson/sympy,dqnykamp/sympy,pbrady/sympy,skirpichev/omg,kumarkrishna/sympy,maniteja123/sympy,VaibhavAgarwalVA/sympy,debugger22/sympy,kevalds51/sympy,kaichogami/sympy,moble/sympy,Sumith1896/sympy,jamesblunt/sympy,sampadsaha5/sympy,chaffra/sympy,rahuldan/sympy,mafiya69/sympy,grevutiu-gabriel/sympy,oliverlee/sympy,Titan-C/sympy,Vishluck/sympy,Designist/sympy,pandeyadarsh/sympy,asm666/sympy,ChristinaZografou/sympy,emon10005/sympy,meghana1995/sympy,kaushik94/sympy,cccfran/sympy,Mitchkoens/sympy,garvitr/sympy,atsao72/sympy,AkademieOlympia/sympy,yukoba/sympy,shipci/sympy,vipulroxx/sympy,rahuldan/sympy,debugger22/sympy,souravsingh/sympy,AunShiLord/sympy,emon10005/sympy,ChristinaZografou/sympy,kmacinnis/sympy,vipulroxx/sympy,shikil/sympy,lidavidm/sympy,kmacinnis/sympy,abloomston/sympy,souravsingh/sympy,moble/sympy,garvitr/sympy,madan96/sympy,wyom/sympy,farhaanbukhsh/sympy,liangjiaxing/sympy,souravsingh/sympy,garvitr/sympy,abloomston/sympy,wanglongqi/sympy,ahhda/sympy,shipci/sympy,lindsayad/sympy,pernici/sympy,Sumith1896/sympy,toolforger/sympy,mafiya69/sympy,AkademieOlympia/sympy,mcdaniel67/sympy,atsao72/sympy,meghana1995/sympy,kevalds51/sympy,abhiii5459/sympy,MechCoder/sympy,jbbskinny/sympy,beni55/sympy,cswiercz/sympy,flacjacket/sympy,Gadal/sympy,srjoglekar246/sympy,sunny94/temp,lindsayad/sympy,atreyv/sympy,hargup/sympy,yashsharan/sympy,drufat/sympy,tovrstra/sympy,hrashk/sympy,jerli/sympy,ahhda/sympy,asm666/sympy,mafiya69/sympy,jaimahajan1997/sympy,rahuldan/sympy,jaimahajan1997/sympy,liangjiaxing/sympy,Curious72/sympy,oliverlee/sympy,aktech/sympy,ga7g08/sympy,bukzor/sympy,toolforger/sympy,grevutiu-gabriel/sympy,abhiii5459/sympy,postvakje/sympy,iamutkarshtiwari/sympy,sahmed95/sympy,mcdaniel67/sympy,Davidjohnwilson/sympy,Mitchkoens/sympy,diofant/diofant,pandeyadarsh/sympy,abloomston/sympy,hrashk/sympy,lidavidm/sympy,farhaanbukhsh/sympy,Shaswat27/sympy,postvakje/sympy,drufat/sympy,amitjamadagni/sympy,atreyv/sympy,debugger22/sympy,Designist/sympy,moble/sympy,sahilshekhawat/sympy,toolforger/sympy,hazelnusse/sympy-old,beni55/sympy,madan96/sympy,shikil/sympy,Davidjohnwilson/sympy,jbaayen/sympy,skidzo/sympy,yashsharan/sympy,Sumith1896/sympy,jamesblunt/sympy,KevinGoodsell/sympy,Gadal/sympy,maniteja123/sympy,bukzor/sympy,beni55/sympy,Vishluck/sympy,farhaanbukhsh/sympy,cswiercz/sympy,Curious72/sympy,minrk/sympy,abhiii5459/sympy,iamutkarshtiwari/sympy,Arafatk/sympy,grevutiu-gabriel/sympy,yukoba/sympy,ga7g08/sympy,kaushik94/sympy,AunShiLord/sympy,sampadsaha5/sympy,sahilshekhawat/sympy,hazelnusse/sympy-old,cswiercz/sympy,shikil/sympy,jbbskinny/sympy,aktech/sympy,MridulS/sympy,wanglongqi/sympy