Move supplier construction to ctor body

Author: rzblue

wpilibNewCommands/src/main/native/cpp/frc2/command/ProxyCommand.cpp

@@ -16,10 +16,10 @@ ProxyCommand::ProxyCommand(Command* command)
   SetName(std::string{"Proxy("}.append(command->GetName()).append(")"));
 }
 
-ProxyCommand::ProxyCommand(std::unique_ptr<Command> command)
-    : m_supplier((
-          SetName(std::string{"Proxy("}.append(command->GetName()).append(")")),
-          [command = std::move(command)] { return command.get(); })) {}
+ProxyCommand::ProxyCommand(std::unique_ptr<Command> command) {
+  SetName(std::string{"Proxy("}.append(command->GetName()).append(")"));
+  m_supplier = [command = std::move(command)] { return command.get(); };
+}
 
 void ProxyCommand::Initialize() {
   m_command = m_supplier();