[Patch] for bugzilla 12261 "add the option -diag to the usage"

[igorh]

http://nagoya.apache.org/bugzilla/show_bug.cgi?id=12261

Igor Hersht
XSLT Development
IBM Canada Ltd., 8200 Warden Avenue, Markham, Ontario L6G 1C7
Office D2-260, Phone (905)413-3240 ; FAX  (905)413-4839