Fix double space before "in" ("dans") in lluelles.csl and lluelles-lexisnexis.csl

[f-mb]

No description provided.

[zuphilip]

Side remark: I search for this pattern in the repository locally and there seems to be much more such occurencies among the styles:

Search "<[^/>]*suffix=" "[^/>]*/?>\r\n\s*<[^/>]*prefix=" "[^/>]*/?>" (169 hits in 149 files)

Is this always an error or code this also be somehow meaningful? If some variables are empty or not... For example in vancouver-superscript-only-year:

        <if type="bill book graphic legal_case legislation motion_picture report song" match="any">
          <text macro="edition" prefix=" " suffix=" "/>
          <text macro="publisher" prefix=" "/>
        </if>

My guess is that it is copied from there as a template in several other styles as well...

[adam3smith]

Adjacent spaces are stripped out by citeproc-js, so they mostly don't cause a lot of problems, but they're indeed always errors in the style and should be avoided (that's to @zuphilip 's point, I'll review and merge this PR later)

[adam3smith]

thanks! (on a side-note: simple pull requests should never take us more than a week to review. Please feel free to send a reminder if we take longer).