Add argument vaidation to OSX.load_plist()
OSX.load_plist() accepts String, OSX::NSString and OSX::NSData.
OSX.load_plist(nil) # => ArgumentError OSX.load_plist(broken_input) # => RuntimeError
Authored by: kimuraw 2014-06-19
Parent: [r2571]
Child: [r2573]