llvm/test/tools/yaml2obj/basic.test - llvm-project - Git at Google

 # Test case when the input file does not exist.
 RUN: not yaml2obj %t.blah 2>&1 | FileCheck -DMSG=%errc_ENOENT --check-prefix=ENOENT %s

 ENOENT: yaml2obj: error: {{.*}}.blah: [[MSG]]
	# Test case when the input file does not exist.
	RUN: not yaml2obj %t.blah 2>&1 \| FileCheck -DMSG=%errc_ENOENT --check-prefix=ENOENT %s

	ENOENT: yaml2obj: error: {{.*}}.blah: [[MSG]]