/usr/share/aide/config/aide/aide.conf.d/31_aide_nrpe is in aide-common 0.16~a2.git20130520-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | /@@{RUN}/nagios/nrpe\.pid$ VarFile
/@@{RUN}/nagios$ VarDirInode
|