Remove Boolean()

Author: 1999

lib/reporters/base.js

@@ -25,7 +25,7 @@ exports = module.exports = Base;
  * Check if both stdio streams are associated with a tty.
  */
 
-var isatty = Boolean(process.stdout.isTTY) && Boolean(process.stderr.isTTY);
+var isatty = process.stdout.isTTY && process.stderr.isTTY;
 
 /**
  * Save log references to avoid tests interfering (see GH-3604).