Use ./exclude mechanism for /etc/resolv.conf

exclude

@@ -0,0 +1,18 @@
+./.dockerenv
+./.dockerinit
+./sys
+./proc
+./dev
+./etc/hostname
+./etc/machine-id
+./etc/resolv.conf
+./etc/pacman.d/gnupg/openpgp-revocs.d/*
+./etc/pacman.d/gnupg/private-keys-v1.d/*
+./etc/pacman.d/gnupg/pubring.gpg~
+./etc/pacman.d/gnupg/S.*
+./root/*
+./tmp/*
+./var/cache/pacman/pkg/*
+./var/lib/pacman/sync/*
+./var/tmp/*
+./alpm-hooks