clang-format: update c/cc coding style

Update all cc code using .clang-format; please do so as well for future PRs
etc.; emacs has a handy 'clang-format' mode to make this automatic.

For comparing old changes with git blame, we can disregard this one using
--ignore-rev

(see https://www.moxio.com/blog/43/ignoring-bulk-change-commits-with-git-blame )

lib/utils/mu-result.hh

@@ -17,32 +17,32 @@
 **
 */
 
-
 #ifndef MU_RESULT_HH__
 #define MU_RESULT_HH__
 
-
 #include "expected.hpp"
 #include "utils/mu-error.hh"
 
-
 namespace Mu {
 /**
  * A Result is _either_ some value of type T, _or_ an error.
  */
 template <typename T> using Result = tl::expected<T, Error>;
 
-template <typename T> typename Result<T>::expected_type
-Ok(T&& t) {
-        return Result<T>::expected(std::move(t));
+template <typename T>
+typename Result<T>::expected_type
+Ok(T&& t)
+{
+	return Result<T>::expected(std::move(t));
 }
 
-template <typename T> typename Result<T>::unexpected_type
-Err(Error&& err) {
-        return Result<T>::unexpected(std::move(err));
+template <typename T>
+typename Result<T>::unexpected_type
+Err(Error&& err)
+{
+	return Result<T>::unexpected(std::move(err));
 }
 
 } // namespace Mu
 
-
 #endif /* MU_ERROR_HH__ */