Possible HTTP-Splitting vulnerability

Problem: [http_splitting] Possible HTTP-Splitting vulnerability.
Description: Using variables that can contain "\n" may lead to http injection.
Additional info: https://github.com/yandex/gixy/blob/master/docs/en/plugins/httpsplitting.md
Reason: At least variable "$uri" can contain "\n"

conf/nginx.conf

@@ -38,7 +38,7 @@ location ^~ #LOCATION# {
   #rewrite ^/.well-known/host-meta.json #PATH#/public.php?service=host-meta-json last;
 
   location #LOCATION# {
-    rewrite ^ #PATH#/index.php$uri;
+    rewrite ^ #PATH#/index.php$request_uri;
   }
 
   location = #PATH#/robots.txt {