Documentation/git-lost-found.txt: drop unnecessarily duplicated name.

I only did this back when I wanted to make sure git-log and gitk work
properly with non Occidental characters.  There is really no reason to
keep it around.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

Documentation/git-lost-found.txt

@@ -65,7 +65,7 @@ $ git rev-parse not-lost-anymore
 
 Author
 ------
-Written by Junio C Hamano 濱野 純 <junkio@cox.net>
+Written by Junio C Hamano <gitster@pobox.com>
 
 Documentation
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