Actually send a payload when editing members

src/Discord.Net/DiscordAPIClient.cs

@@ -148,7 +148,7 @@ namespace Discord
 			if (userId == null) throw new ArgumentNullException(nameof(userId));
 
 			var request = new EditMemberRequest { Mute = mute, Deaf = deaf, Roles = roles };
-			return _rest.Patch(Endpoints.ServerMember(serverId, userId));
+			return _rest.Patch(Endpoints.ServerMember(serverId, userId), request);
 		}
 		public Task Kick(string serverId, string userId)
 		{

src/Discord.Net/DiscordClient.API.cs

@@ -290,7 +290,7 @@ namespace Discord
 					throw new ArgumentException("Roles must be a collection of string or Role.", nameof(roles));
 			});
 
-			return _api.EditMember(serverId, userId, mute, deaf, newRoles);
+			return _api.EditMember(serverId, userId, mute: mute, deaf: deaf, roles: newRoles);
 		}
 
 		//Messages