test: Ignore 'Journal file truncated' journal message
test: Ignore 'Journal file truncated' journal message

This particularly happens on user journal files.

Closes #5303
Reviewed-by: Dominik Perpeet <f7830b2723a5db4fc185058b06cfab4b89a38da9@redhat.com>

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