patch 8.1.0289: cursor moves to wrong column after quickfix jump

Problem:    Cursor moves to wrong column after quickfix jump.
Solution:   Set the curswant flag. (Andy Massimino, closes #3331)
diff --git a/src/quickfix.c b/src/quickfix.c
index 8cfec6c..78df708 100644
--- a/src/quickfix.c
+++ b/src/quickfix.c
@@ -3010,6 +3010,7 @@
 			++screen_col;
 		}
 	    }
+	    curwin->w_set_curswant = TRUE;
 	    check_cursor();
 	}
 	else