agent: Pass G_MESSAGES_DEBUG from cockpit-session to cockpit-agent
agent: Pass G_MESSAGES_DEBUG from cockpit-session to cockpit-agent

This allows us to set G_MESSAGES_DEBUG via systemd and have it
apply to all subprocesses in the tree.

Reviewed-by: Marius Vollmer <bb11c6e942c5cc765df5f04da146b3198127a7a3@redhat.com>

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