lconvert: converting from .po to .ts adds extra new lines to comments

msgid ""
msgstr ""
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"
"Plural-Forms: nplurals=2; plural=(n != 1);\n"
"X-Language: fi_FI\n"

# translator comment
#. some text
#. ts-id some-id
msgid "some text"
msgstr "..."

    <message id="some-id">
        <source>some text</source>
        <extracomment>some text
</extracomment>
        <translatorcomment>translator comment
</translatorcomment>
        <translation>...</translation>
    </message>