The following are shell-specific quirks you might care about when using shpec.
If you use zsh you must disable the end keyword. This won't be that big of a problem
since it belongs to a foreach...end structure that is rarely used.
To disable it, just run disable -r end.
Otherwise you'll get the following error parse error near 'end'
If you have installed shpec through antigen, there is nothing you need to do,
shpec.plugin.zsh defines an alias that does this for you:
alias shpec="zsh -c 'disable -r end; . $(dirname $0:A)/bin/shpec'"