Fold dnsmasq command line in lxc-net.in

Fold dnsmasq command line at about 80 chars because the line is too
long.

Signed-off-by: TAMUKI Shoichi <tamuki@linet.gr.jp>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

config/init/common/lxc-net.in

@@ -124,7 +124,13 @@ start() {
         fi
     done
 
-    dnsmasq $LXC_DHCP_CONFILE_ARG $LXC_DOMAIN_ARG -u ${DNSMASQ_USER} --strict-order --bind-interfaces --pid-file="${varrun}"/dnsmasq.pid --listen-address ${LXC_ADDR} --dhcp-range ${LXC_DHCP_RANGE} --dhcp-lease-max=${LXC_DHCP_MAX} --dhcp-no-override --except-interface=lo --interface=${LXC_BRIDGE} --dhcp-leasefile="${varlib}"/misc/dnsmasq.${LXC_BRIDGE}.leases --dhcp-authoritative $LXC_IPV6_ARG || cleanup
+    dnsmasq $LXC_DHCP_CONFILE_ARG $LXC_DOMAIN_ARG -u ${DNSMASQ_USER} \
+            --strict-order --bind-interfaces --pid-file="${varrun}"/dnsmasq.pid \
+            --listen-address ${LXC_ADDR} --dhcp-range ${LXC_DHCP_RANGE} \
+            --dhcp-lease-max=${LXC_DHCP_MAX} --dhcp-no-override \
+            --except-interface=lo --interface=${LXC_BRIDGE} \
+            --dhcp-leasefile="${varlib}"/misc/dnsmasq.${LXC_BRIDGE}.leases \
+            --dhcp-authoritative $LXC_IPV6_ARG || cleanup
 
     touch "${varrun}"/network_up
     FAILED=0