adjust issue801 so that all angle brackets are read in different buffer

Author: BlueGreenMagick

tests/issues.rs

@@ -498,10 +498,11 @@ fn issue776() {
 }
 
 /// Regression test for https://github.com/tafia/quick-xml/issues/801
+/// Angle brackets are read in different buffer
 #[test]
 fn issue801() {
-    let xml = b"<!DOCTYPE X [<!-- --><!ENTITY a \"a\">]>";
-    let reader = BufReader::with_capacity(4, &xml[..]);
+    let xml = b"<!DOCTYPE X [<!-- --> <!ENTITY a \"a\">]>";
+    let reader = BufReader::with_capacity(2, &xml[..]);
     let mut reader = Reader::from_reader(reader);
     let mut buf = Vec::new();
     loop {