[svn r58211] allow to specify filenames that need to be preserved
[svn r58211] allow to specify filenames that need to be preserved

--HG--
branch : trunk

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