Thank you Bart, I had already noticed. I still wanted to avoid having to change all my landmarks one by one... But this solution remains valid, longer, but valid.
That's crazy... I find nothing to believe that Solidworks doesn't know about Unicode characters!
Now I'm looking to remove the "R" that always comes with <bend-radius>... it 's doable by editing the view and changing the bend note, why wouldn't it be possible directly in BendNoteFormat"?