lib/logstash/outputs/csv.rb in logstash-output-csv-3.0.9 vs lib/logstash/outputs/csv.rb in logstash-output-csv-3.0.10

@@ -64,8 +64,8 @@
     val.is_a?(Hash) ? LogStash::Json.dump(val) : escape_csv(val)
   end
 
   private
   def escape_csv(val)
-    (spreadsheet_safe && val.is_a?(String) && val.start_with?("=")) ? "'#{val}" : val
+    (spreadsheet_safe && val.is_a?(String) && val.start_with?(/[=+\-@]/)) ? "'#{val}" : val
   end
 end # class LogStash::Outputs::CSV