From c01d2fe6b45fec755053afe3c36adfc7c9acf17f Mon Sep 17 00:00:00 2001
From: Nicola Soranzo <nicola.soranzo@earlham.ac.uk>
Date: Tue, 8 Dec 2020 17:34:14 +0000
Subject: [PATCH] Fix exclamation mark breaking GH workflow

Fix the following error:

```
The workflow is not valid. .github/workflows/maintenance_bot.yaml: (Line: 14, Col: 13, Idx: 253) - (Line: 14, Col: 14, Idx: 254): While parsing a tag, did not find expected tag URI.
```
---
 .github/workflows/maintenance_bot.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/maintenance_bot.yaml b/.github/workflows/maintenance_bot.yaml
index 4034602467c..a34a2be4f07 100644
--- a/.github/workflows/maintenance_bot.yaml
+++ b/.github/workflows/maintenance_bot.yaml
@@ -11,7 +11,7 @@ jobs:
       MILESTONE_NUMBER: 18
     steps:
       - name: Add area labels
-        if: ! contains(join(github.event.pull_request.labels.*.name, ', '), 'area/')
+        if: ${{ ! contains(join(github.event.pull_request.labels.*.name, ', '), 'area/') }}
         uses: actions/labeler@main
         with:
           repo-token: "${{ secrets.GITHUB_TOKEN }}"