llvm-project/llvm/test/tools/llvm-cxxfilt/help.test

RUN: llvm-cxxfilt -h | FileCheck %s
RUN: llvm-cxxfilt --help | FileCheck %s

CHECK: OVERVIEW: LLVM symbol undecoration tool
CHECK: USAGE: {{.*}}llvm-cxxfilt{{(.exe)?}} [options] <mangled>{{$}}
CHECK: OPTIONS:
CHECK: @FILE