[Devel] Using Here-doc instead of echo "..."

[Igor Podlesny]

-- Here-doc is generally more readable/writeable way to implement
"patterns" in SHELL.
---
 etc/dists/scripts/debian-add_ip.sh |    9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/etc/dists/scripts/debian-add_ip.sh b/etc/dists/scripts/debian-add_ip.sh
index 80e8e73..d38e65f 100755
--- a/etc/dists/scripts/debian-add_ip.sh
+++ b/etc/dists/scripts/debian-add_ip.sh
@@ -47,7 +47,8 @@ setup_network()
 				"${CFGFILE}-$(date --rfc-3339=seconds).bak"
 		}
 
-	echo "# This configuration file is auto-generated.
+	cat > "$CFGFILE" <<__ETC_NET_INT__
+# This configuration file is auto-generated.
 #
 # $DONT_EDIT, your changes will be lost.
 # Please create/edit $CFGFILE.head and
@@ -57,7 +58,7 @@ setup_network()
 # NOTE: it is NOT guaranteed that the contents of $CFGFILE.tail
 # will be at the very end of this file.
 #
-" > ${CFGFILE}
+__ETC_NET_INT__
 
 	if [ -f ${CFGFILE}.head ]; then
 		cat ${CFGFILE}.head >> ${CFGFILE}
@@ -84,7 +85,7 @@ iface ${LOOPBACK} inet loopback" >> ${CFGFILE}
 
 	if [ -n "${IP_ADDR}" ]; then
 		# Set up venet0
-		echo "
+		cat >> "$CFGFILE" <<__VENET__
 # Auto generated ${VENET_DEV} interface
 auto ${VENET_DEV}
 iface ${VENET_DEV} inet manual
@@ -93,7 +94,7 @@ iface ${VENET_DEV} inet manual
 	up route add default dev ${VENET_DEV}
 	down route del default dev ${VENET_DEV}
 	down ifconfig ${VENET_DEV} down
-" >> ${CFGFILE}
+__VENET__
 
 		if [ "${IPV6}" = "yes" ]; then
 			echo "
-- 
1.7.9.5