mq/qqueue: print current queue name
Add an option to qqueue to print only the name of the current queue.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
export: add %m to file format string (first line of the commit message)
$ hg commit -m "Initial commit"
$ hg export -o %m.patch tip #It creates Initial_commit.patch file.