Returns a new string made by appending to the receiver a given string.
Original signature is '- (NSString *)stringByAppendingPathComponent:(NSString *)aString'
Available in Mac OS X v10.0 and later.


- aString (NSString)
- The path component to append to the receiver.

A new string made by appending aString to the receiver, preceded if necessary by a path separator.

- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)