[flang][tests] Fix Python bug in the lit config
authorAndrzej Warzynski <andrzej.warzynski@arm.com>
Sat, 24 Oct 2020 16:04:25 +0000 (17:04 +0100)
committerAndrzej Warzynski <andrzej.warzynski@arm.com>
Sat, 24 Oct 2020 16:04:25 +0000 (17:04 +0100)
commitcbb7f1420b747aae09a7f728c186bb0c2702eb02
treefbb3a7414a3e70d196afadd863f10a7f07da31cd
parent66abe650fff6031074171ea9c7c6aa180bc2cbe9
[flang][tests] Fix Python bug in the lit config

Without this change LIT tests for Flang fail with:
```
TypeError: append() takes exactly one argument (2 given)
```
flang/test/lit.cfg.py