fuse: "terminating upon EBADF" log message is confusing, set its level to DEBUG
fuse: "terminating upon EBADF" log message is confusing, set its level to DEBUG

Signed-off-by: Csaba Henk <csaba@lowlife.hu>
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>

BUG: 1887 (logging mess)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1887

Kaushikbv/Gluster,Kaushikbv/Gluster,Kaushikbv/Gluster