Remove non posix code

debian/ngcp-db-schema.postinst

@@ -9,15 +9,15 @@ case "$1" in
         # ngcp 2.5 repos provides ngcp-db-schema := 0.1.3
         # ngcp 2.6 repos provides ngcp-db-schema >= 2.6.3
         if [ -n "$2" ] && dpkg --compare-versions $2 ge 2.6.0 && dpkg --compare-versions $2 le 2.6.3 ; then
-            echo -ne "Executing ngcp-update-db-schema to address 2.6 db rev script bug.\n"
+            echo  "Executing ngcp-update-db-schema to address 2.6 db rev script bug."
             ngcp-update-db-schema
 
             if /etc/init.d/kamailio-proxy status >/dev/null ; then
                if [ -x "$(which invoke-rc.d 2>/dev/null)" ]; then
-		   echo -ne "\n\nRestarting kamailio proxy to handle db changes\n"
+		   echo  "Restarting kamailio proxy to handle db changes"
                    invoke-rc.d kamailio-proxy restart || exit $?
                else
-		   echo -ne "\n\nRestarting kamailio proxy to handle db changes\n"
+		   echo  "Restarting kamailio proxy to handle db changes"
                    /etc/init.d/kamailio-proxy restart || exit $?
                fi
             fi