docs: reword sentence that my brain can't parse
docs: reword sentence that my brain can't parse

Signed-off-by: Eric Engestrom <de0b63cf2dfb1fae8ed3c3b4244856a05677d4f0@imgtec.com>
Reviewed-by: Elie Tournier <5c0022236e9b3687a923edb73918be2d9fd022fe@gmail.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler