/// \returns The fully qualified path to the first \p Name in \p Paths if it
/// exists. \p Name if \p Name has slashes in it. Otherwise an error.
ErrorOr<std::string>
- findProgramByName(StringRef Name,
- ArrayRef<StringRef> Paths = ArrayRef<StringRef>());
+ findProgramByName(StringRef Name, ArrayRef<StringRef> Paths = None);
// These functions change the specified standard stream (stdin or stdout) to
// binary mode. They return errc::success if the specified stream