Enabling module authz_core. apache2: Syntax error on line 140 of /etc/apache2/apache2.conf: Syntax error on line 1 of /etc/apache2/mods-enabled/auth_pam.load: Cannot load /usr/lib/apache2/modules/mod_auth_pam.so into server: /usr/lib/apache2/modules/mod_auth_pam.so: undefined symbol: ap_log_rerror Update did continue, so not critial, but should investigate.
*** This bug has been marked as a duplicate of bug 43241 ***
Yes, duplicate.