#77 fix 'help' documentation for checkout-shas task, tomaster is no longer an option
#77 fix 'help' documentation for checkout-shas task, tomaster is no longer an option

concord-consortium/chipper,concord-consortium/chipper,phetsims/chipper,phetsims/chipper,concord-consortium/chipper,concord-consortium/chipper,phetsims/chipper