doc/locking.txt: Job queue functions can be called from LUs
doc/locking.txt: Job queue functions can be called from LUs

The previous description was unclear. Reported by Guido Trotter.

Reviewed-by: ultrotter


dimara/ganeti,apyrgio/snf-ganeti,bitemyapp/ganeti,grnet/snf-ganeti,mbakke/ganeti,ganeti/ganeti,andir/ganeti,ganeti/ganeti,ganeti/ganeti,onponomarev/ganeti,yiannist/ganeti,ganeti-github-testing/ganeti-test-1,onponomarev/ganeti,apyrgio/ganeti,yiannist/ganeti,dimara/ganeti,ganeti-github-testing/ganeti-test-1,apyrgio/ganeti,mbakke/ganeti,mbakke/ganeti,leshchevds/ganeti,grnet/snf-ganeti,bitemyapp/ganeti,leshchevds/ganeti,leshchevds/ganeti,andir/ganeti,andir/ganeti,apyrgio/snf-ganeti,yiannist/ganeti