aubinator: fix resource leak
aubinator: fix resource leak

CovID: 1373370

Signed-off-by: Nayan Deshmukh <df308fb4a67a5efb3258393111da6e14db0cf127@gmail.com>
Reviewed-by: Kenneth Graunke <bd2562f754ec92342f93f61c25d731e290a2ffa8@whitecape.org>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler