Style.

src/http/ngx_http_upstream.c

diff --git a/src/http/ngx_http_upstream.c b/src/http/ngx_http_upstream.c
index c618ce6..e005806 100644
--- a/src/http/ngx_http_upstream.c
+++ b/src/http/ngx_http_upstream.c
@@ -641,7 +641,7 @@
                 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
                               "no port in upstream \"%V\"", host);
                 ngx_http_upstream_finalize_request(r, u,
-                                                   NGX_HTTP_INTERNAL_SERVER_ERROR);
+                                               NGX_HTTP_INTERNAL_SERVER_ERROR);
                 return;
             }