sysutils/poweralertd: unbreak fetch due to recompression

> Fetched file size mismatch (expected 39916, actual 39662)

$ gzip -l poweralertd-0.2.0.tar.gz

compressed uncompressed  ratio uncompressed_name

• 39916 102400 61.0% poweralertd-0.2.0.tar

+ 39662 102400 61.2% poweralertd-0.2.0.tar

(cherry picked from commit baaf1901e8c89cd3bebe81d40d3a362da16a8602)