64-bit time_t compatibility

src/http/ngx_http_request.c

diff --git a/src/http/ngx_http_request.c b/src/http/ngx_http_request.c
index c1dc3a6..86f2446 100644
--- a/src/http/ngx_http_request.c
+++ b/src/http/ngx_http_request.c
@@ -2341,7 +2341,7 @@
         return;
     }
 
-    timer = r->lingering_time - ngx_time();
+    timer = (ngx_msec_t) (r->lingering_time - ngx_time());
     if (timer <= 0) {
         ngx_http_close_request(r, 0);
         return;