EmsEvent::Automate#parse_policy_parameters: always return 3 values.
EmsEvent::Automate#parse_policy_parameters: always return 3 values.

Same check whether any of them is nil is done in the only caller
(EmsEvent::Automate#policy) anyway.
Previously caller could try to destructure `a, b, c = nil` which
I'm dismayed to see is not an error but sets all 3 to nil,
so it behaved the same but it was hard to understand why.

KevinLoiseau/manageiq,ilackarms/manageiq,romanblanco/manageiq,tzumainn/manageiq,gmcculloug/manageiq,NaNi-Z/manageiq,israel-hdez/manageiq,jvlcek/manageiq,kbrock/manageiq,agrare/manageiq,branic/manageiq,KevinLoiseau/manageiq,juliancheal/manageiq,billfitzgerald0120/manageiq,tinaafitz/manageiq,josejulio/manageiq,gerikis/manageiq,djberg96/manageiq,mzazrivec/manageiq,tinaafitz/manageiq,mzazrivec/manageiq,jameswnl/manageiq,andyvesel/manageiq,gerikis/manageiq,josejulio/manageiq,hstastna/manageiq,mfeifer/manageiq,mfeifer/manageiq,syncrou/manageiq,KevinLoiseau/manageiq,lpichler/manageiq,durandom/manageiq,kbrock/manageiq,mresti/manageiq,romaintb/manageiq,lpichler/manageiq,jrafanie/manageiq,billfitzgerald0120/manageiq,NickLaMuro/manageiq,d-m-u/manageiq,jntullo/manageiq,chessbyte/manageiq,billfitzgerald0120/manageiq,borod108/manageiq,branic/manageiq,ManageIQ/manageiq,tzumainn/manageiq,NaNi-Z/manageiq,jameswnl/manageiq,NickLaMuro/manageiq,chessbyte/manageiq,pkomanek/manageiq,israel-hdez/manageiq,djberg96/manageiq,branic/manageiq,jrafanie/manageiq,jntullo/manageiq,fbladilo/manageiq,skateman/manageiq,maas-ufcg/manageiq,maas-ufcg/manageiq,borod108/manageiq,maas-ufcg/manageiq,tinaafitz/manageiq,lpichler/manageiq,yaacov/manageiq,KevinLoiseau/manageiq,NickLaMuro/manageiq,romaintb/manageiq,fbladilo/manageiq,hstastna/manageiq,tinaafitz/manageiq,andyvesel/manageiq,skateman/manageiq,mzazrivec/manageiq,d-m-u/manageiq,romaintb/manageiq,romaintb/manageiq,aufi/manageiq,kbrock/manageiq,ailisp/manageiq,kbrock/manageiq,yaacov/manageiq,jntullo/manageiq,ilackarms/manageiq,aufi/manageiq,jrafanie/manageiq,ManageIQ/manageiq,ailisp/manageiq,romaintb/manageiq,tzumainn/manageiq,borod108/manageiq,d-m-u/manageiq,skateman/manageiq,mresti/manageiq,matobet/manageiq,djberg96/manageiq,hstastna/manageiq,durandom/manageiq,josejulio/manageiq,maas-ufcg/manageiq,yaacov/manageiq,josejulio/manageiq,gmcculloug/manageiq,jvlcek/manageiq,mzazrivec/manageiq,israel-hdez/manageiq,matobet/manageiq,borod108/manageiq,mfeifer/manageiq,matobet/manageiq,NickLaMuro/manageiq,mfeifer/manageiq,juliancheal/manageiq,matobet/manageiq,KevinLoiseau/manageiq,gerikis/manageiq,durandom/manageiq,jntullo/manageiq,yaacov/manageiq,gmcculloug/manageiq,djberg96/manageiq,syncrou/manageiq,gmcculloug/manageiq,agrare/manageiq,jvlcek/manageiq,mresti/manageiq,syncrou/manageiq,branic/manageiq,mkanoor/manageiq,agrare/manageiq,jvlcek/manageiq,jrafanie/manageiq,NaNi-Z/manageiq,romanblanco/manageiq,mresti/manageiq,KevinLoiseau/manageiq,ailisp/manageiq,juliancheal/manageiq,romanblanco/manageiq,andyvesel/manageiq,syncrou/manageiq,aufi/manageiq,andyvesel/manageiq,d-m-u/manageiq,lpichler/manageiq,ManageIQ/manageiq,skateman/manageiq,NaNi-Z/manageiq,chessbyte/manageiq,mkanoor/manageiq,ailisp/manageiq,romanblanco/manageiq,maas-ufcg/manageiq,durandom/manageiq,juliancheal/manageiq,israel-hdez/manageiq,billfitzgerald0120/manageiq,ilackarms/manageiq,pkomanek/manageiq,gerikis/manageiq,tzumainn/manageiq,fbladilo/manageiq,ManageIQ/manageiq,ilackarms/manageiq,pkomanek/manageiq,aufi/manageiq,mkanoor/manageiq,hstastna/manageiq,agrare/manageiq,mkanoor/manageiq,romaintb/manageiq,pkomanek/manageiq,fbladilo/manageiq,jameswnl/manageiq,maas-ufcg/manageiq,jameswnl/manageiq,chessbyte/manageiq