[tex-live] texdoc texlive.tlpdb cache-tlpdb.lua

[texlive at schoepfer.info]

> under the condition:
> 
> 1. Data.tlpdb.lua exists in the appropriate location
>    (please be aware of the file name; it's not cache-tlpdb.lua)
> 2. /tlpkg/texlive.tlpdb does not exist
>    (even empty texlive.tlpdb is not necessary)
> 
> Texdoc should be work fine. Running `texdoc -dtlpdb foo` with
> the above condition, Texdoc will show
> 
> 	texdoc debug-tlpdb: Using shipped tlpdb data.

Indeed, i forget mktexlsr after adding Data.tlpdb.lua.

Thank you very much!

Johannes