Hello again,

Included are 2 patches: one to update the copyright line in mail.scm,
since i forgot that when bumping the mu version, and another to upgrade
ncmpcpp, the MPD client, to latest stable.

Another question for you all: i would like to package MPC, the MPD cli
client, but mpc is already the name of the GNU multiprecision
library. What should i call this mpc package? Since i know that Guixers
are prone to long debates about names (i jest :p), here's my single
suggestion:

* mpc-client

Bye!
p.