At the end of trip.es, it attempts to check heredocs by calling
to es, however, this doesn't do what is expected if the newly built es
is first in the path (or in my case, in the path at all).
errorcheck 'incomplete heredoc' {es -c 'cat<<eof'} 'pending'
should be changed to something like
errorcheck 'incomplete heredoc' {$es -c 'cat<<eof'} 'pending'