code review request for 6986789: Sun pkcs11 provider fails to parse path name containing "+"

[Valerie (Yu-Ching) Peng]

Hi, Max,

Can you please help reviewing this following fix:
6986789: Sun pkcs11 provider fails to parse path name containing "+"

It's only a one-line change, essentially adding '+' to the list of valid 
characters recognized by the Config file parser.

Webrev at:
http://cr.openjdk.java.net/~valeriep/6986789/webrev.00/

Thanks,
Valerie