make closing a tlog with the correct marker a bit easier
expand test_marker_presence_required to verify --mark-tlog -close
remove help2man dependency from jenkins/base/005_install_ubuntu_dependencies.sh
add separate --close-tlog command to cli
Merge pull request #481 from Incubaid/hint-close-marker

make closing a tlog with the correct marker a bit easier
return an exit code different from 0 when some tests fail
bla failing test