Improved help text for exec and pin.
Improved help text for exec and pin.

cmars/tools,dvwallin/glide,cmars/tools,avvmoto/glide,cmars/tools,avvmoto/glide,cmars/tools,ezeql/glide,franciscocpg/glide,jchauncey/glide,gcmt/glide,franciscocpg/glide