clover: Trivial cleanups for api/program.cpp.
clover: Trivial cleanups for api/program.cpp.

Reviewed-by: Serge Martin <bbac3597f01acc7d927683e64659598a4321d5b2@sigluy.net>
Tested-by: Jan Vesely <ed664c4bb5cadd95cb7521d1190a56e280fa6954@rutgers.edu>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler