fixes wp cli crash due to EXTRA PHP for https not being injected correctly

create.sh

           --path=/var/www/html \
           --skip-check \
           --extra-php <<EXTRA-PHP
-  if (isset(\$_SERVER["HTTP_X_FORWARDED_PROTO"]) && \$_SERVER["HTTP_X_FORWARDED_PROTO"] == "https") \$_SERVER["HTTPS"]="on";
-  EXTRA-PHP
-  '
+if (isset(\$_SERVER["HTTP_X_FORWARDED_PROTO"]) && \$_SERVER["HTTP_X_FORWARDED_PROTO"] == "https") \$_SERVER["HTTPS"]="on";
+EXTRA-PHP
+'
   
   echo "Installing WordPress core"
   docker exec --user www-data "${PREFIX}-app" /bin/sh -c "