Remove a misleading comment about VBR quality request range.
Remove a misleading comment about VBR quality request range.

The documentation says the range is -0.1 to 1.0, but these comments
started the range at 0.0. Against expectations, it looks like the
documentation is correct.

Patch from Douglas Bagnall <douglas@paradise.net.nz>.


git-svn-id: 03f0f1727258f1959b7b485b30a676bafdb78148@16790 0101bb08-14d6-0310-b084-bc0e0c8e3800

fcoulombe/vorbis,soundcloud/vorbis,soundcloud/vorbis,soundcloud/vorbis,fcoulombe/vorbis,fcoulombe/vorbis,fcoulombe/vorbis