Rebase to 3.17, restore GNU findutils package.

root/etc/s6-overlay/s6-rc.d/init-transmission-config/run

@@ -1,4 +1,5 @@
 #!/usr/bin/with-contenv bash
+# shellcheck shell=bash
 
 # make folders
 mkdir -p \

root/etc/s6-overlay/s6-rc.d/svc-cron/run

@@ -1,4 +1,5 @@
 #!/usr/bin/with-contenv bash
+# shellcheck shell=bash
 
 exec \
     /usr/sbin/crond -f -S -l 0 -c /etc/crontabs

root/etc/s6-overlay/s6-rc.d/svc-transmission/run

@@ -1,4 +1,5 @@
 #!/usr/bin/with-contenv bash
+# shellcheck shell=bash
 
 s6-notifyoncheck -d -n 300 -w 1000 -c "nc -z localhost 9091" \
     s6-setuidgid abc /usr/bin/transmission-daemon \