Run 'psltool fmt' to reformat PSL to canonical form

[danderson]

These are all pure block movements, no suffix or metadata changes. Just out of paranoia, I verified the change with some extra manual steps:

• ripgrep -v '^//' | ripgrep -v '^$' | sort >suffixes.txt before and after the reformat shows no diffs, IOW exactly the same suffixes are present.
• sort <public_suffix_list.dat >lines.txt shows only 1 diff, post reformat the file has 1 blank line less than the original, no changes to any comment or suffix text.
• psltool validate public_suffix_list.dat reports that the PSL file is valid, i.e. no formatting issues and no issues with the validations implemented so far.
• make test of course. All tests pass.
• After opening the PR, psltool check-pr 2088 (with code from #2087) reports that the file is valid and has no changed suffix blocks. IOW, the diff logic saw that block ordering changed, but the semantic content of the file did not.

[simon-friedberger]

I ran my old check script as well and had a quick look. Looks good.