I noticed the following line in the change log:

 > ruby.c (proc_options): allow long encoding name.

So now I can write -Kutf-8 on the command line instead of the more 
cryptic -Ku.  Thanks for this.

However, notice what happens if I try an unknown encoding that begins 
with 'u', 'a', 'n', 'e', or 's':

$ ./ruby1.9 -Kutf
./ruby1.9: invalid option -t  (-h will show valid options)

I think this is a very confusing error message!

	David