This yields better conversion results, but requires the previous change,
otherwise there would have been difficulties in locating the temporary file
name.
In the next commit, we are going to change the conversion method to
"html:XHTML Writer File:UTF8". Without this change, that conversion method name
would end up in the extension of the temporary file that is created as an
intermediate step. In this way, the file extensione will always stay ".html".
No functional changes, hopefully. Only the extension of the temporary file
should change.
It's just synctactic sugar, but it is always better than executing string
concatenations in one's mind.
Do not do this with files in src/static, because we want to keep IE 11
compatibility.
If you edit `src/templates/export_html.html` to remove the
`<meta name="changedby" content="Etherpad">` tag[1], PDF export with
soffice has a bug: the first word of the pad is deleted and a blank page
is inserted as first page (the pad's text begins on the second page).
The `--writer` soffice option avoids that bug.
[1] you may want to delete that tag since it is inserted as a comment in
.doc or .odt soffice export.
When using LibreOffice to convert pads to doc, we got `Error: no export filter for /tmp/xxxx.doc` (tested with LO 5 and 6). Maybe it's a regression from LO. Anyway, converting HTML to odt, then to doc works.
Thx to lpagliari for her review!
