combinatorics/permutations: Updated doctests for getting the precedence matrix.
combinatorics/permutations: Updated doctests for getting the
precedence matrix.

Signed-off-by: Saptarshi Mandal <13ec3c7bab52575f3a0cda6406c76269cc13b041@gmail.com>

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