patch 8.2.0004: get E685 and E931 if buffer reload is interrupted

Problem:    Get E685 and E931 if buffer reload is interrupted.
Solution:   Do not abort deleting a dummy buffer. (closes #5361)
diff --git a/src/ex_getln.c b/src/ex_getln.c
index 769dcb8..51433f1 100644
--- a/src/ex_getln.c
+++ b/src/ex_getln.c
@@ -4372,7 +4372,7 @@
 	// win_close() may have already wiped the buffer when 'bh' is
 	// set to 'wipe'
 	if (bufref_valid(&bufref))
-	    close_buffer(NULL, bufref.br_buf, DOBUF_WIPE, FALSE);
+	    close_buffer(NULL, bufref.br_buf, DOBUF_WIPE, FALSE, FALSE);
 
 	// Restore window sizes.
 	win_size_restore(&winsizes);