patch 8.1.1549: quickfix test fails

Problem:    Quickfix test fails.
Solution:   Negate result of bt_quickfix().

Author: brammool

src/quickfix.c

@@ -4135,7 +4135,7 @@ qf_open_new_cwindow(qf_info_T *qi, int height)
     // Set the options for the quickfix buffer/window (if not already done)
     // Do this even if the quickfix buffer was already present, as an autocmd
     // might have previously deleted (:bdelete) the quickfix buffer.
-    if (bt_quickfix(curbuf))
+    if (!bt_quickfix(curbuf))
 	qf_set_cwindow_options();
 
     // Only set the height when still in the same tab page and there is no

src/version.c

@@ -777,6 +777,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1549,
 /**/
     1548,
 /**/