FWIW, In GStreamer git repositories we use that same rule for the
one-liner with a subtle variation:
* We do allow capital letters (seriously, who cares? It looks nice)
* Considering you want to have as much info as possible in that
one-liner, we try to prefix it with a word giving a clue as to where the
work was done (without looking at the modified files). Doesn't apply if
it's a change accross the whole module.
Ex :
"rtspsrc: allow http:// on the proxy setting", or
"Mark unused arguments using G_GNUC_UNUSED glib macro."