在Mac OS X上制作RDoc Ruby Gem Default

I've recently installed RDoc version (2.4.3) through Ruby gems to replace the one shipped with Mac OS X (version 1.0.1). Unfortunately, I can still only use RDoc 1.0.1 when I call run "rdoc" at the command line. rdoc -v returns:I've recently installed RDoc version (2.4.3) th