Make the hook systemd compatible

welcomemessage.install

@@ -1,11 +1,11 @@
-build ()
-{
+# vim:ft=sh
+
+build() {
     cat $(cat /etc/welcomemessage.conf | sed -n '/filename=/p' | sed 's/filename=//') > "$BUILDROOT/welcomemessage"
     add_runscript
 }
-help ()
-{
+help() {
 cat<<HELPEOF
   This hook will print a welcome message before the encryption password is required
 HELPEOF
-}
+}