junitxml: reverse the if/else logic for failure appending
junitxml: reverse the if/else logic for failure appending

flub/pytest,nicoddemus/pytest,ropez/pytest,vodik/pytest,omarkohl/pytest,ddboline/pytest,JonathonSonesen/pytest,The-Compiler/pytest,Bachmann1234/pytest,vmalloc/dessert,skylarjhdownes/pytest,davidszotten/pytest,eli-b/pytest,ropez/pytest,JonathonSonesen/pytest,markshao/pytest,MengJueM/pytest,tgoodlet/pytest,userzimmermann/pytest,malinoff/pytest,MengJueM/pytest,The-Compiler/pytest,omarkohl/pytest,hpk42/pytest,lukas-bednar/pytest,MichaelAquilina/pytest,pytest-dev/pytest,alfredodeza/pytest,pfctdayelise/pytest,rmfitzpatrick/pytest,tomviner/pytest,vodik/pytest,txomon/pytest,Bachmann1234/pytest,userzimmermann/pytest,etataurov/pytest,tomviner/pytest,Akasurde/pytest,hackebrot/pytest,tareqalayan/pytest,jaraco/pytest,nicoddemus/pytest,hpk42/pytest,lukas-bednar/pytest,RonnyPfannschmidt/pytest