Fix broken on-boot examples (#628)

Co-authored-by: John Dorman <427295+boostchicken@users.noreply.github.com>

Author: Shraymonks

on-boot-script-2.x/examples/udm-files/on_boot.d/15-add-github-ssh-keys.sh

@@ -1,7 +1,8 @@
 #!/bin/bash
 
 # Get DataDir location
-DATA_DIR="/data"case "$(ubnt-device-info firmware || true)" in
+DATA_DIR="/data"
+case "$(ubnt-device-info firmware || true)" in
 1*)
     DATA_DIR="/mnt/data"
     ;;

on-boot-script-2.x/examples/udm-files/on_boot.d/15-add-root-ssh-keys.sh

@@ -1,7 +1,6 @@
 #!/bin/bash
 # Get DataDir location
 DATA_DIR="/data"
-
 case "$(ubnt-device-info firmware || true)" in
 1*)
     DATA_DIR="/mnt/data"

on-boot-script-2.x/examples/udm-files/on_boot.d/15-add-ssh-known-hosts.sh

@@ -1,6 +1,7 @@
 #!/bin/bash
 # Get DataDir location
-DATA_DIR="/data"case "$(ubnt-device-info firmware || true)" in
+DATA_DIR="/data"
+case "$(ubnt-device-info firmware || true)" in
 1*)
     DATA_DIR="/mnt/data"
     ;;

zerotier-one/20-zerotier.sh

@@ -1,6 +1,7 @@
 #!/bin/bash
 # Get DataDir location
-DATA_DIR="/data"case "$(ubnt-device-info firmware || true)" in
+DATA_DIR="/data"
+case "$(ubnt-device-info firmware || true)" in
 1*)
     DATA_DIR="/mnt/data"
     ;;