Fixes the doctests
Fixes the doctests

The doctests were fixed to test for things that the doctest runner expects.
The doctest runner might be improved to test for repr() instead of str().

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

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