Check for 'hide' flag in commands in (bs,cs,ns)_set HELP

This code is duplicated from help.cpp to (bs,cs,ns)_set.cpp for listing
the available SET commands. The check for the 'hide' flag was missed
and this incorrectly listed commands that were configured as hidden.

modules/commands/bs_set.cpp

@@ -41,6 +41,9 @@ class CommandBSSet : public Command
 			const CommandInfo &info = it->second;
 			if (c_name.find_ci(this_name + " ") == 0)
 			{
+				if (info.hide)
+					continue;
+
 				ServiceReference<Command> command("Command", info.name);
 				if (command)
 				{

modules/commands/cs_set.cpp

@@ -43,6 +43,9 @@ class CommandCSSet : public Command
 			const CommandInfo &info = it->second;
 			if (c_name.find_ci(this_name + " ") == 0)
 			{
+				if (info.hide)
+					continue;
+
 				ServiceReference<Command> c("Command", info.name);
 
 				// XXX dup

modules/commands/ns_set.cpp

@@ -42,6 +42,9 @@ class CommandNSSet : public Command
 
 			if (c_name.find_ci(this_name + " ") == 0)
 			{
+				if (info.hide)
+					continue;
+
 				ServiceReference<Command> c("Command", info.name);
 				// XXX dup
 				if (!c)