Ticket #48146 - async simple paged results issue; log pr index
Description: When the request is a simple paged results search,
log pr index in the access log.
Sample access log for "getent netgroup <name>":
[..] conn=23 op=521 SRCH base="cn=accounts,dc=testrelm,dc=test" scope=2 filter="(&(|(memberOf=ipaUniqueID=3036b6a0-ee18-11e4-b7dd-00215e2032c0,cn=ng,cn=alt,dc=testrelm,dc=test))(objectClass=ipaHost))" attrs="objectClass cn fqdn serverHostName memberOf ipaSshPubKey ipaUniqueID"
[..] conn=23 op=521 RESULT err=0 tag=101 nentries=200 etime=0 notes=P pr_idx=3
https://fedorahosted.org/389/ticket/48146
Reviewed by rmeggins@redhat.com (Thanks, Rich!!)
(cherry picked from commit 9eb20d89755160aa916544c7cfce0ad066e538f7)