Fixed a minor merge error with this patch.
@@ -388,7 +388,7 @@ try:
[os.path.join(config.llvm_tools_dir, 'llvm-config'), '--assertion-mode'],
stdout = subprocess.PIPE,
env=config.environment)
-except OSError:
+except OSError as e:
print("Could not launch llvm-config in " + config.llvm_tools_dir)
print(" Failed with error #{0}: {1}".format(e.errno, e.strerror))
exit(42)
