It makes sense to make all binaries in rt-tests behave similarly, so regarding
"oslat -v" even if it's not my preference, it's fine to me.

We could also update all other tools to just print the version string
for '--version'. I don't have a strong preference. My main concern is
that I don't want the tools to differ in the usage pattern. BTW, I think
I would drop '-v' as short command line option as for example cyclictest
uses '-v' for verbose.

Again - Would you consider also dump the version in the output as before even
for a normal run?

Again, I don't have a strong opinion here. Just the same argument as
before, all tools should behave in the same way.