*: change C-style prototypes, drop "(void)"

src/command/AllCommands.cxx

@@ -257,7 +257,8 @@ handle_not_commands(Client &client, gcc_unused ConstBuffer<const char *> args)
 	return CommandResult::OK;
 }
 
-void command_init(void)
+void
+command_init()
 {
 #ifndef NDEBUG
 	/* ensure that the command list is sorted */
@@ -266,7 +267,8 @@ void command_init(void)
 #endif
 }
 
-void command_finish(void)
+void
+command_finish()
 {
 }
 

src/command/AllCommands.hxx

@@ -24,9 +24,11 @@
 
 class Client;
 
-void command_init(void);
+void
+command_init();
 
-void command_finish(void);
+void
+command_finish();
 
 CommandResult
 command_process(Client &client, unsigned num, char *line);