From 5eaf6c221e6c13b89c7e85c8d65ca7cd793dda92 Mon Sep 17 00:00:00 2001
From: Onur Tirtir <onurcantirtir@gmail.com>
Date: Mon, 16 Oct 2023 14:20:55 +0300
Subject: [PATCH] Fix flaky test detection job (#7256)

We were getting such errors in flaky-test detection job:
```
Unable to process file command 'output' successfully
```

Even though we don't seem to be writing multiple lines to
$GITHUB_OUTPUT, this seems to be the right fix.

https://docs.github.com/en/actions/using-workflows/workflow-commands-for-github-actions#multiline-strings
---
 .github/workflows/build_and_test.yml | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/build_and_test.yml b/.github/workflows/build_and_test.yml
index 90a4b1432..5944c38db 100644
--- a/.github/workflows/build_and_test.yml
+++ b/.github/workflows/build_and_test.yml
@@ -439,7 +439,10 @@ jobs:
         else
           echo "Detected tests " $tests
         fi
-        echo tests="$tests" >> "$GITHUB_OUTPUT"
+
+        echo 'tests<<EOF' >> $GITHUB_OUTPUT
+        echo "$tests" >> "$GITHUB_OUTPUT"
+        echo 'EOF' >> $GITHUB_OUTPUT
   test-flakyness:
     if: ${{ needs.test-flakyness-pre.outputs.tests != ''}}
     name: Test flakyness