test harness: Stringify values in a more readable manner.
test harness: Stringify values in a more readable manner.

(q-) passes through newlines and NUL bytes verbatim.  Using (qqqq) ensures the
escaped string will be on a single line (as required by the TAP format) and be
readable even if it contains control characters.

phy1729/zsh-syntax-highlighting,P71/zsh-syntax-highlighting,zsh-users/zsh-syntax-highlighting,zsh-users/zsh-syntax-highlighting,P71/zsh-syntax-highlighting,phy1729/zsh-syntax-highlighting