Call `set*ent()` before reading the user/group NSS database
Call `set*ent()` before reading the user/group NSS database

Some NSS backends (e.g. libnss_db on RHEL7) segfault when scanning
the user list multiple times without a `set*ent()` in between.

angeloc/sysdig,angeloc/sysdig,angeloc/sysdig,angeloc/sysdig,angeloc/sysdig