Fix autopr title (#45)

Author: Coldwings

.github/workflows/auto-pr-precise.yml

@@ -59,6 +59,7 @@ jobs:
         git checkout -b ${{steps.create_branch.outputs.PRBRANCH}}
         echo "TITLE<<__AUTOPR_EOF" >> $GITHUB_OUTPUT
         git log --format="| %s" ${{ github.event.commits[0].id }}~..${{ github.event.after }} | tr '\n' ' ' >> $GITHUB_OUTPUT
+        echo "" >> $GITHUB_OUTPUT
         echo "__AUTOPR_EOF" >> $GITHUB_OUTPUT
         echo "MESSAGE<<__AUTOPR_EOF" >> $GITHUB_OUTPUT
         git log --format="> %B" ${{ github.event.commits[0].id }}~..${{ github.event.after }} >> $GITHUB_OUTPUT