don't append null-terminator to buffer. fixes #13545
[pvr] bump pvr add-ons to https://github.com/opdenkamp/xbmc-pvr-addons/commit/a9780e023c8b7728017851bfd12d4df9e5c26993
Merge pull request #2062 from opdenkamp/pvr-frodo-bump

[pvr] sync pvr add-ons
Merge pull request #2053 from ronie/xbmcvfs-write

[python] fix xbmcvfs.File(file).write(buffer)