On 28-09-2022 06:34, kiasoc5 via Guix-patches via wrote:
>>> * gnu/packages/pretty-print.scm (source-highlight):
>>> [arguments]: Use gexps, remove trailing #ts.
>>> [phases]: Add phase to make src-highlight-lesspipe.sh work.
>> These unrelated changes should be separated into at least two
>> patches next time: one to gexp and remove the #ts, the other to
>> make the functional change.
>> < to go
>> straight to master.
> 1. Does trailing #t change the hash?

Yes.

> 2. Why might Gexpification change the hash?

When the resulting staged code changes.  This could happen if you were 
to do, say, #$(this-package-input "boost") instead of (assoc-ref 
%build-inputs "boost") for example, though AFAICT you didn't make any 
G-exp-related changes that would change the hash.

Greetings,
Maxime.