Fix spec typo.
Fix spec typo.

Issue #2060.

svn path=/trunk/vorbis/; revision=19241

emscripten-ports/Vorbis,felipebetancur/vorbis,eidy/vorbis,emscripten-ports/Vorbis,ksophocleous/vorbis,nicolaichuk/vorbis,youfearm3/vorbis,eidy/vorbis,erikd/vorbis,ShiftMediaProject/vorbis,youfearm3/vorbis,nicolaichuk/vorbis,mwgoldsmith/vorbis,ShiftMediaProject/vorbis,felipebetancur/vorbis,emscripten-ports/Vorbis,ksophocleous/vorbis,ShiftMediaProject/vorbis,nicolaichuk/vorbis,felipebetancur/vorbis,mwgoldsmith/vorbis,youfearm3/vorbis,youfearm3/vorbis,ShiftMediaProject/vorbis,mwgoldsmith/vorbis,ksophocleous/vorbis,eidy/vorbis,felipebetancur/vorbis,mwgoldsmith/vorbis,ShiftMediaProject/vorbis,erikd/vorbis,nicolaichuk/vorbis,eidy/vorbis,erikd/vorbis,ShiftMediaProject/vorbis,ksophocleous/vorbis,erikd/vorbis,emscripten-ports/Vorbis