[tex-live] luaotfload and UNC paths

[Siep Kroonenberg]

On w32, lualatex does not work from a TL installation on a UNC path.
Partial output from mkluatexfontdb -vvv --update:

luaotfload | db : Scanning directory //VBITMUIS/lan/aps/TeXLive/2013/texmf-dist/
fonts/opentypeluaotfload | db : Scanning directory //VBITMUIS/lan/aps/TeXLive/20
13/texmf-dist/fonts/opentype

luaotfload | db : 466 font files detectedluaotfload | db : 466 font files detect
ed

luaotfload | db : Loading font ΓÇ£/vbitmuis/lan/aps/texlive/2013/texmf-dist/font
s/opentype/public/tex-gyre/texgyreheroscn-bold.otfΓÇ¥luaotfload | db : Loading f
ont ΓÇ£/vbitmuis/lan/aps/texlive/2013/texmf-dist/fonts/opentype/public/tex-gyre/
texgyreheroscn-bold.otfΓÇ¥
\\VBITMUIS\lan\aps\TeXLive\2013\bin\win32\runscript.tlu:614: ...texmf-dist/tex/l
uatex/luaotfload/luaotfload-database.lua:1201: attempt to index field '?' (a nil
 value)

I see funny characters ΓÇ£/vbitmuis/... at the start of a UNC path,
which suggests that something goes wrong with normalizing the path.

-- 
Siep Kroonenberg