www/squid-devel: add patch to fix kerberos_ldap_group helper, fix pinger
- add patch to fix kerberos_ldap_group helper work with heimdal
- regenerate two patches to follow upstreamed versions
- fix pinger in plist and bump portrevision
PR: 246355
Submitted by: Pavel Timofeev <timp87@gmail.com> (maintainer)