Make it work better with FreeBSD

bin/init-mu

@@ -2,11 +2,11 @@
 grep -q broadcom.net /etc/resolv.conf
 if [ $? -eq 0 ] ; then
     mu init \
-       --maildir=~/Mail/ \
+       --maildir=$HOME/Mail/ \
        --my-address=paul.walker@broadcom.com
 else
     mu init \
-       --maildir=~/Mail/ \
+       --maildir=$HOME/Mail/ \
        --my-address=h.devore@gmail.com \
        --my-address=hdevore@gmail.com \
        --my-address=paul@blacksun.org.uk \