There's a merged pull request on the void-packages repository

acpid: Only read cpuinfo_{min,max}_freq when needed
https://github.com/void-linux/void-packages/pull/48864

Description:
Previously handler.sh would unconditionally fork/exec 'cat' twice to read these files on any invocation, though their values are only used for ac_adapter events.  Tidy it up to only read them when handling that case.

#### Testing the changes
- I tested the changes in this PR: **briefly**