Remove trailing whitespace (#3668)

Foundation/include/Poco/Channel.h

@@ -46,29 +46,29 @@ public:
 		/// the reference count to one.
 
 	virtual void open();
-		/// Does whatever is necessary to open the channel. 
+		/// Does whatever is necessary to open the channel.
 		/// The default implementation does nothing.
-		
+
 	virtual void close();
 		/// Does whatever is necessary to close the channel.
 		/// The default implementation does nothing.
-		
+
 	virtual void log(const Message& msg) = 0;
 		/// Logs the given message to the channel. Must be
 		/// overridden by subclasses.
 		///
 		/// If the channel has not been opened yet, the log()
 		/// method will open it.
-		
+
 	void setProperty(const std::string& name, const std::string& value);
 		/// Throws a PropertyNotSupportedException.
 
 	std::string getProperty(const std::string& name) const;
 		/// Throws a PropertyNotSupportedException.
-		
+
 protected:
 	virtual ~Channel();
-	
+
 private:
 	Channel(const Channel&);
 	Channel& operator = (const Channel&);