Exclude empty lines

.github/workflows/ci.yml

@@ -81,8 +81,10 @@ jobs:
           # FIXME: Suppress warnings from templates project
           exit_code=0
           while read -r line; do
+            if [[ ! -z "$line" ]]; then
               echo "::error::$line"
               exit_code=1
+            fi
           done <<< $(dotnet codefilesanity)
           exit $exit_code