Fixed X-Powered-By header not updating

install

@@ -169,6 +169,10 @@ function update_to_ee3()
     # Preserve old configuration
     ee_lib_echo "Updating EasyEngine 3 configuration"
 
+    if [ -f /etc/nginx/nginx.conf ]; then
+        sed -i "s/X-Powered-By.*/X-Powered-By \"EasyEngine $new_ee_version\";/" /etc/nginx/nginx.conf &>> /dev/null
+    fi
+
     grant_host=$(grep grant-host /etc/easyengine/ee.conf | awk '{ print $3 }')
     db_name=$(grep db-name /etc/easyengine/ee.conf | awk '{ print $3 }')
     db_user=$(grep db-name /etc/easyengine/ee.conf | awk '{ print $3 }')