shell: Get address of Docker machine from the right place
shell: Get address of Docker machine from the right place

Fixes #1217
Closes #1268
Reviewed-by: Stef Walter <8a7fbf0f15d3ad982af54ef28f5c117d2494b76c@redhat.com>

andreasn/cockpit,mvollmer/cockpit,SotolitoLabs/cockpit,sgallagher/cockpit,dperpeet/cockpit,Thermionix/cockpit,cockpit-project/cockpit,martinpitt/cockpit,petervo/cockpit,harishanand95/cockpit,cockpituous/cockpit,evol262/cockpit,FireDrunk/cockpit,nmav/cockpit,matobet/cockpit,garrett/cockpit,michalskrivanek/cockpit,andreasn/cockpit,jscotka/cockpit,haiyangd/cockpit_view,harishanand95/cockpit,dperpeet/cockpit,sub-mod/cockpit,matobet/cockpit,larsu/cockpit,Thermionix/cockpit,garrett/cockpit,petervo/cockpit,andreasn/cockpit,moolitayer/cockpit,zigitax/cockpit,mareklibra/cockpit,deryni/cockpit,harishanand95/cockpit,larskarlitski/cockpit,arilivigni/cockpit,moraleslazaro/cockpit,firebitsbr/cockpit,Scribery/cockpit,zigitax/cockpit,mvollmer/cockpit,Thermionix/cockpit,evol262/cockpit,vanloswang/cockpit,deryni/cockpit,vanloswang/cockpit,stefwalter/cockpit,Scribery/cockpit,sub-mod/cockpit,haiyangd/cockpit_view,deryni/cockpit,haiyangd/cockpit_view,mareklibra/cockpit,stefwalter/cockpit,moraleslazaro/cockpit,dperpeet/cockpit,kkaempf/cockpit,cockpit-project/cockpit,cockpituous/cockpit,jscotka/cockpit,FireDrunk/cockpit,matobet/cockpit,arilivigni/cockpit,mareklibra/cockpit,harishanand95/cockpit,Armstrong1992/cockpit,arilivigni/cockpit,Armstrong1992/cockpit,Armstrong1992/cockpit,vbatts/cockpit,moraleslazaro/cockpit,denysvitali/cockpit,petervo/cockpit,fridex/cockpit,moolitayer/cockpit,larsu/cockpit,maxamillion/cockpit,kkaempf/cockpit,martinpitt/cockpit,vbatts/cockpit,sgallagher/cockpit,larskarlitski/cockpit,harishanand95/cockpit,fridex/cockpit,vbatts/cockpit,dperpeet/cockpit,mareklibra/cockpit,larskarlitski/cockpit,moolitayer/cockpit,michalskrivanek/cockpit,sub-mod/cockpit,vanloswang/cockpit,vanloswang/cockpit,xhad/cockpit,mareklibra/cockpit,jscotka/cockpit,Thermionix/cockpit,dperpeet/cockpit,nmav/cockpit,Armstrong1992/cockpit,SotolitoLabs/cockpit,sgallagher/cockpit,darioajr/cockpit,sub-mod/cockpit,mareklibra/cockpit,mvollmer/cockpit,cockpituous/cockpit,larsu/cockpit,netzvieh/cockpit,larskarlitski/cockpit,sub-mod/cockpit,evol262/cockpit,darioajr/cockpit,SotolitoLabs/cockpit,Thermionix/cockpit,deryni/cockpit,cockpituous/cockpit,mareklibra/cockpit,martinpitt/cockpit,fridex/cockpit,vbatts/cockpit,larsu/cockpit,moolitayer/cockpit,larskarlitski/cockpit,matobet/cockpit,cockpit-project/cockpit,kkaempf/cockpit,kkaempf/cockpit,SotolitoLabs/cockpit,sgallagher/cockpit,larskarlitski/cockpit,maxamillion/cockpit,petervo/cockpit,andreasn/cockpit,netzvieh/cockpit,dperpeet/cockpit,denysvitali/cockpit,zigitax/cockpit,nmav/cockpit,garrett/cockpit,FireDrunk/cockpit,moolitayer/cockpit,moraleslazaro/cockpit,vbatts/cockpit,andreasn/cockpit,nmav/cockpit,arilivigni/cockpit,FireDrunk/cockpit,Scribery/cockpit,Scribery/cockpit,xhad/cockpit,kkaempf/cockpit,denysvitali/cockpit,evol262/cockpit,harishanand95/cockpit,arilivigni/cockpit,moraleslazaro/cockpit,denysvitali/cockpit,vbatts/cockpit,zigitax/cockpit,michalskrivanek/cockpit,FireDrunk/cockpit,matobet/cockpit,fridex/cockpit,petervo/cockpit,firebitsbr/cockpit,cockpit-project/cockpit,deryni/cockpit,arilivigni/cockpit,nmav/cockpit,sgallagher/cockpit,evol262/cockpit,sgallagher/cockpit,denysvitali/cockpit,SotolitoLabs/cockpit,larsu/cockpit,evol262/cockpit,dperpeet/cockpit,arilivigni/cockpit,SotolitoLabs/cockpit,matobet/cockpit,firebitsbr/cockpit,vanloswang/cockpit,cockpituous/cockpit,mvollmer/cockpit,xhad/cockpit,jscotka/cockpit,stefwalter/cockpit,xhad/cockpit,xhad/cockpit,martinpitt/cockpit,Armstrong1992/cockpit,netzvieh/cockpit,larsu/cockpit,petervo/cockpit,zigitax/cockpit,moraleslazaro/cockpit,cockpituous/cockpit,Scribery/cockpit,netzvieh/cockpit,michalskrivanek/cockpit,maxamillion/cockpit,petervo/cockpit,vanloswang/cockpit,stefwalter/cockpit,stefwalter/cockpit,fridex/cockpit,deryni/cockpit,haiyangd/cockpit_view,SotolitoLabs/cockpit,firebitsbr/cockpit,cockpit-project/cockpit,darioajr/cockpit,andreasn/cockpit,martinpitt/cockpit,michalskrivanek/cockpit,haiyangd/cockpit_view,maxamillion/cockpit,maxamillion/cockpit,garrett/cockpit,stefwalter/cockpit,garrett/cockpit,netzvieh/cockpit,michalskrivanek/cockpit,harishanand95/cockpit,larskarlitski/cockpit,andreasn/cockpit,xhad/cockpit,Scribery/cockpit,jscotka/cockpit,xhad/cockpit,deryni/cockpit,sgallagher/cockpit,firebitsbr/cockpit,stefwalter/cockpit,darioajr/cockpit,darioajr/cockpit,netzvieh/cockpit,vanloswang/cockpit,jscotka/cockpit,moraleslazaro/cockpit,Thermionix/cockpit,fridex/cockpit,Scribery/cockpit,mvollmer/cockpit,michalskrivanek/cockpit