GRMLBASE/91-update-pciids: also ignore exit code 1

If the grml_chroot uses /etc/resolv.conf with a symlink pointing to
/run/resolvconf/resolv.conf which might not exist, executing
update-pciids fails.

In the past, wget used to fail with exit code 4 (`Network failure`
according to wget(1)). Nowadays we seem to get exit code 1 (`Generic
error code`) instead. It behaves as such even if curl is present and
gets prefered over wget.

So let's also catch this error condition, to not fail a build because of
that, but instead warn about it.

etc/grml/fai/config/scripts/GRMLBASE/91-update-pciids

@@ -14,11 +14,11 @@ fi
 set -u
 
 bailout() {
-  if [ "${1:-}" = "4" ] ; then
-    echo "Warning: update-pciids returned with exit code 4." >&2
+  if [ "${1:-}" = "4" ] || [ "${1:-}" = "1" ] ; then
+    echo "Warning: update-pciids returned with exit code ${1:-}." >&2
 
     # be verbose in logs
-    echo "Warning: update-pciids returned with exit code 4."
+    echo "Warning: update-pciids returned with exit code ${1:-}."
     echo "-> This indicates that networking inside the chroot did not work"
     echo "   while GRMLBASE/91-update-pciids was running."
     echo "   To address this issue you can either configure /etc/resolv.conf"