message: fix header to exclude keywords for clang compiler on MAC
diff: @@ -31,29 +31,29 @@ extern "C" {
  extern sovrin_error_t sovrin_register_wallet_type(const char* xtype,
  - sovrin_error_t (*create)(const char* name,
  + sovrin_error_t (*createFn)(const char* name,
  const char* config,
  const char* credentials),
  - sovrin_error_t (*open)(const char* name,
  + sovrin_error_t (*openFn)(const char* name,
  const char* config,
  const char* credentials,
  sovrin_handle_t* handle),
  - sovrin_error_t (*set)(sovrin_handle_t handle,
  + sovrin_error_t (*setFn)(sovrin_handle_t handle,
  const char* key,
  const char* sub_key,
  const char* value),
  - sovrin_error_t (*get)(sovrin_handle_t handle,
  + sovrin_error_t (*getFn)(sovrin_handle_t handle,
  const char* key,
  const char* sub_key,
  const char* value_ptr,
  const char* value_life_time),
  - sovrin_error_t (*close)(sovrin_handle_t handle),
  - sovrin_error_t (*delete)(const char* name),
  - sovrin_error_t (*free)(sovrin_handle_t handle, const char* str)
  + sovrin_error_t (*closeFn)(sovrin_handle_t handle),
  + sovrin_error_t (*deleteFn)(const char* name),
  + sovrin_error_t (*freeFn)(sovrin_handle_t handle, const char* str)
  );
  /// Creates a new secure wallet with the given unique name.
  