fix typos in comments
fix typos in comments

--HG--
branch : trunk

hpk42/pytest,bukzor/pytest,The-Compiler/pytest,vodik/pytest,chiller/pytest,untitaker/pytest,hackebrot/pytest,pytest-dev/pytest,takluyver/pytest,bukzor/pytest,RonnyPfannschmidt/pytest,tomviner/pytest,hunse/pytest,tgoodlet/pytest,vodik/pytest,nicoddemus/pytest,Haibo-Wang-ORG/pytest,rouge8/pytest,markshao/pytest,ericdill/pytest,doordash/pytest,MengJueM/pytest,skylarjhdownes/pytest,icemac/pytest,ericdill/pytest,lukas-bednar/pytest,gabrielcnr/pytest,abusalimov/pytest,Bachmann1234/pytest,omarkohl/pytest,Carreau/pytest,tareqalayan/pytest,hunse/pytest,ropez/pytest,ropez/pytest,ghostsquad/pytest,mbirtwell/pytest,oleg-alexandrov/pytest,Bjwebb/pytest,mdboom/pytest,nicoddemus/pytest,rouge8/pytest,chiller/pytest,codewarrior0/pytest,chillbear/pytest,Magicjarvis/py,txomon/pytest,davidszotten/pytest,omarkohl/pytest,The-Compiler/pytest,rmfitzpatrick/pytest,etataurov/pytest,eli-b/pytest,abusalimov/pytest,gabrielcnr/pytest,jb098/pytest,pelme/pytest,bubenkoff/pytest,Haibo-Wang-ORG/pytest,pfctdayelise/pytest,ojake/pytest,MengJueM/pytest,lukas-bednar/pytest,icemac/pytest,hpk42/pytest,inirudebwoy/pytest,JonathonSonesen/pytest,wfxiang08/pytest,ojake/pytest,userzimmermann/pytest,codewarrior0/pytest,tomviner/pytest,jaraco/pytest,inirudebwoy/pytest,mdboom/pytest,ionelmc/pytest,nicoddemus/repo-test,mhils/pytest,mhils/pytest,Akasurde/pytest,flub/pytest,takluyver/pytest,alfredodeza/pytest,pelme/pytest,wfxiang08/pytest,vmalloc/dessert,userzimmermann/pytest,JonathonSonesen/pytest,untitaker/pytest,ddboline/pytest,bubenkoff/pytest,pytest-dev/py,doordash/pytest,nicoddemus/repo-test,oleg-alexandrov/pytest,Bachmann1234/pytest,ghostsquad/pytest,malinoff/pytest,Carreau/pytest,MichaelAquilina/pytest,jb098/pytest,Bjwebb/pytest,mbirtwell/pytest,chillbear/pytest,ionelmc/pytest