* modules/ldap/util_ldap_cache.c (util_ldap_cache_init): Use the

actual available size of the shm segment not the requested size.
Ensure the requested size is aligned.  Check errors from apr_rmm_init.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@225753 13f79535-47bb-0310-9956-ffa450edef68