fix(http1): fix response with non-chunked transfer-encoding to be close-delimited

Closes #2058

tests/client.rs

@@ -655,6 +655,35 @@ test! {
             body: None,
 }
 
+test! {
+    name: client_response_transfer_encoding_not_chunked,
+
+    server:
+        expected: "\
+            GET /te-not-chunked HTTP/1.1\r\n\
+            host: {addr}\r\n\
+            \r\n\
+            ",
+        reply: "\
+            HTTP/1.1 200 OK\r\n\
+            transfer-encoding: yolo\r\n\
+            \r\n\
+            hallo\
+            ",
+
+    client:
+        request: {
+            method: GET,
+            url: "http://{addr}/te-not-chunked",
+        },
+        response:
+            status: OK,
+            headers: {
+                "transfer-encoding" => "yolo",
+            },
+            body: &b"hallo"[..],
+}
+
 test! {
     name: client_pipeline_responses_extra,