Fix shellcheck errors

Author: lildude

share/github-backup-utils/ghe-restore-pages-rsync

@@ -7,7 +7,8 @@
 set -e
 
 # Bring in the backup configuration
-. $( dirname "${BASH_SOURCE[0]}" )/ghe-backup-config
+# shellcheck source=share/github-backup-utils/ghe-backup-config
+. "$( dirname "${BASH_SOURCE[0]}" )/ghe-backup-config"
 
 # Show usage and bail with no arguments
 [ -z "$*" ] && print_usage