Fixes caught by Daniele Varrazzo's check script.
Russian: Several fixes
cs, hr: fixed .po format errors
Dropped translations with unmatched placeholders in several languages
Fixed options-related help messages in several languages

Broken translation dropped where the correct form wasn't clear.
Fixed psql commands help in several languages
fr, tr: dropped wrong translation

The 'on' doesn't mean "active" here: it means "on something"
Fixed significant trailing whitespaces in several languages

Only changed the language I'm sure punctuation works with western rules and
wrong occurrences of multiple CRs.
pt_BR: initdb: Dropped repeated -A option from help