ifupdown: backport fix LP:1907878 on aramo

helpers/DATA/ifupdown/fix_invalid_lines_from_resolved_integration.patch

@@ -0,0 +1,42 @@
+ * Remove invalid lines from resolved integration scripts (LP: #1907878)
+ -- Heinrich Schuchardt <heinrich.schuchardt@canonical.com>  Sun, 15 May 2022 15:35:51 +0200
+--
+diff -Nru ifupdown-0.8.36+nmu1ubuntu3/debian/if-down.d/resolved ifupdown-0.8.36+nmu1ubuntu4/debian/if-down.d/resolved
+--- ifupdown-0.8.36+nmu1ubuntu3/debian/if-down.d/resolved	2020-07-28 11:55:18.000000000 +0200
++++ ifupdown-0.8.36+nmu1ubuntu4/debian/if-down.d/resolved	2022-05-15 15:28:28.000000000 +0200
+@@ -1,6 +1,6 @@
+ #!/bin/sh
+ #
+-# Script fragment to make ifupdown supply DNS infromation to resolved
++# Script fragment to make ifupdown supply DNS information to resolved
+ #
+ 
+ case "$ADDRFAM" in
+@@ -9,7 +9,6 @@
+ esac            
+ 
+ if systemctl is-enabled systemd-resolved > /dev/null 2>&1; then
+-    mystatedir statedir ifindex interface
+     interface=$IFACE
+     if [ ! "$interface" ]; then
+         return
+diff -Nru ifupdown-0.8.36+nmu1ubuntu3/debian/if-up.d/resolved ifupdown-0.8.36+nmu1ubuntu4/debian/if-up.d/resolved
+--- ifupdown-0.8.36+nmu1ubuntu3/debian/if-up.d/resolved	2022-04-17 23:21:44.000000000 +0200
++++ ifupdown-0.8.36+nmu1ubuntu4/debian/if-up.d/resolved	2022-05-15 15:29:07.000000000 +0200
+@@ -1,6 +1,6 @@
+ #!/bin/sh
+ #
+-# Script fragment to make ifupdown supply DNS infromation to resolved
++# Script fragment to make ifupdown supply DNS information to resolved
+ #
+ 
+ case "$ADDRFAM" in
+@@ -9,8 +9,6 @@
+ esac            
+ 
+ if systemctl is-enabled systemd-resolved > /dev/null 2>&1; then
+-    mystatedir statedir ifindex interface
+-
+     interface=$IFACE
+     if [ ! "$interface" ]; then
+         return