main: Cosmetic changes for Texture Buffers.
main: Cosmetic changes for Texture Buffers.

Adds a useful comment and some whitespace. Fixes an error message.

v2: Review from Anuj Phogat
   - Split rebase of Tex[ture]Buffer[Range]

Reviewed-by: Anuj Phogat <e2026475996c48f0b97fd37e84129b3912980428@gmail.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler