[xacml] AA17: editorial: use "Requesters", not "Requestors"

Text locations:
1) Section 1.1.2 "Related terms", last sentence in section, p. 9, line 267.
2) Section 4.2.4 "Rule 2", explanation for [48]-[82], p. 35, line
   1372
3) Section 4.2.4 "Rule 2", explanation for [51]-[65], p. 35, line
   1377
4) Section 4.2.4.5 "Example PolicySet", each bullet item, pp. 41-42,
   lines 1723-1726

Text change: change spelling from "Requestors" to "Requesters"

Rationale: American Heritage Dictionary and StarOffice spell
checker spell it this way.

Anne
-- 
Anne H. Anderson             Email: 
Sun Microsystems Laboratories
1 Network Drive,UBUR02-311     Tel: 781/442-0928
Burlington, MA 01803-0902 USA  Fax: 781/442-1692