Fixed post_max_size

Author: Markus Blaschke

docker/php-fpm/start.sh

@@ -8,7 +8,7 @@ env[TYPO3_CONTEXT] = ${TYPO3_CONTEXT}
 php_value[memory_limit] = 512M
 php_value[max_execution_time] = 300
 php_value[max_input_time] = 300
-php_admin_value[php_post_max_size] = 50M
+php_admin_value[post_max_size] = 50M
 php_admin_value[upload_max_filesize] = 50M
 
 " >> /etc/php5/fpm/pool.d/www.conf