Quanah Gibson-Mount pushed to branch OPENLDAP_REL_ENG_2_4 at openldap / OpenLDAP

Commits:

• f244d985
  by Howard Chu at 2020-08-10T15:49:35+00:00

  ITS#9309 don't allow ppolicy to be configured more than once on a backend
  

• 1c6031c2
  by Howard Chu at 2020-08-10T16:06:07+00:00

  For ITS#9309 fix check for duplicate overlays
  
  and pass error message back to frontend
  

2 changed files:

• servers/slapd/backover.c
• servers/slapd/overlays/ppolicy.c