shell: More clear wording for the multi-host login troubleshooting
shell: More clear wording for the multi-host login troubleshooting

Fix some punctuation. In addition make it clear that the user can
synchronize passwords in addition to the admin accounts.

Closes #4366
Reviewed-by: Peter <a316049dd34607c62d4611d63ab22a6454add223@redhat.com>

harishanand95/cockpit,cockpituous/cockpit,cockpituous/cockpit,Scribery/cockpit,SotolitoLabs/cockpit,mvollmer/cockpit,petervo/cockpit,moraleslazaro/cockpit,michalskrivanek/cockpit,SotolitoLabs/cockpit,michalskrivanek/cockpit,larskarlitski/cockpit,michalskrivanek/cockpit,petervo/cockpit,cockpituous/cockpit,harishanand95/cockpit,dperpeet/cockpit,xhad/cockpit,larskarlitski/cockpit,garrett/cockpit,dperpeet/cockpit,vanloswang/cockpit,larskarlitski/cockpit,SotolitoLabs/cockpit,sgallagher/cockpit,michalskrivanek/cockpit,larskarlitski/cockpit,SotolitoLabs/cockpit,petervo/cockpit,harishanand95/cockpit,stefwalter/cockpit,garrett/cockpit,xhad/cockpit,michalskrivanek/cockpit,deryni/cockpit,cockpituous/cockpit,moraleslazaro/cockpit,mareklibra/cockpit,moraleslazaro/cockpit,cockpit-project/cockpit,martinpitt/cockpit,moraleslazaro/cockpit,Scribery/cockpit,vanloswang/cockpit,harishanand95/cockpit,andreasn/cockpit,SotolitoLabs/cockpit,cockpituous/cockpit,stefwalter/cockpit,sgallagher/cockpit,mareklibra/cockpit,larsu/cockpit,xhad/cockpit,moraleslazaro/cockpit,vanloswang/cockpit,vanloswang/cockpit,andreasn/cockpit,stefwalter/cockpit,arilivigni/cockpit,sgallagher/cockpit,sgallagher/cockpit,andreasn/cockpit,mareklibra/cockpit,garrett/cockpit,dperpeet/cockpit,arilivigni/cockpit,stefwalter/cockpit,martinpitt/cockpit,arilivigni/cockpit,moraleslazaro/cockpit,SotolitoLabs/cockpit,deryni/cockpit,Scribery/cockpit,vanloswang/cockpit,sgallagher/cockpit,mareklibra/cockpit,andreasn/cockpit,stefwalter/cockpit,xhad/cockpit,mvollmer/cockpit,larskarlitski/cockpit,moraleslazaro/cockpit,Scribery/cockpit,arilivigni/cockpit,vanloswang/cockpit,mvollmer/cockpit,garrett/cockpit,deryni/cockpit,mareklibra/cockpit,deryni/cockpit,dperpeet/cockpit,cockpituous/cockpit,larsu/cockpit,xhad/cockpit,andreasn/cockpit,martinpitt/cockpit,petervo/cockpit,vanloswang/cockpit,Scribery/cockpit,xhad/cockpit,mvollmer/cockpit,SotolitoLabs/cockpit,deryni/cockpit,martinpitt/cockpit,dperpeet/cockpit,larsu/cockpit,andreasn/cockpit,cockpit-project/cockpit,mareklibra/cockpit,sgallagher/cockpit,cockpit-project/cockpit,stefwalter/cockpit,garrett/cockpit,stefwalter/cockpit,arilivigni/cockpit,martinpitt/cockpit,larskarlitski/cockpit,michalskrivanek/cockpit,michalskrivanek/cockpit,harishanand95/cockpit,harishanand95/cockpit,cockpit-project/cockpit,larsu/cockpit,arilivigni/cockpit,mareklibra/cockpit,arilivigni/cockpit,petervo/cockpit,dperpeet/cockpit,sgallagher/cockpit,larskarlitski/cockpit,deryni/cockpit,petervo/cockpit,dperpeet/cockpit,mvollmer/cockpit,larsu/cockpit,andreasn/cockpit,Scribery/cockpit,deryni/cockpit,Scribery/cockpit,cockpit-project/cockpit,petervo/cockpit,harishanand95/cockpit,xhad/cockpit,larsu/cockpit