fix: e.stack?.split() (#404)

closes #398

Author: sjvans

lib/logging/index.js

@@ -122,7 +122,8 @@ module.exports = resource => {
           attributes['exception.stacktrace'] = e.stack
           attributes['exception.type'] = e.name
           // remove stack from message, if present
-          log.msg = log.msg.replace(e.stack, e.stack.split('\n')[0])
+          // NOTE: an error should always have a stack, but there was an issue report where it somehow was undefined
+          log.msg = log.msg.replace(e.stack, e.stack?.split('\n')[0])
         }
         for (const field of custom_fields) if (field in log) attributes[field] = log[field]
         logger.emit({