/usr/lib/prosody/ is in prosody-modules 0.0~hg20150813.12ac88940fe3-2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/prosody/modules/
/usr/lib/prosody/modules/ldap.lib.lua
/usr/lib/prosody/modules/mod_auth_ha1/
/usr/lib/prosody/modules/mod_auth_ha1/mod_auth_ha1.lua
/usr/lib/prosody/modules/mod_auth_ldap2/
/usr/lib/prosody/modules/mod_auth_ldap2/mod_auth_ldap2.lua
/usr/lib/prosody/modules/mod_carbons/
/usr/lib/prosody/modules/mod_carbons/mod_carbons.lua
/usr/lib/prosody/modules/mod_carbons_adhoc/
/usr/lib/prosody/modules/mod_carbons_adhoc/mod_carbons_adhoc.lua
/usr/lib/prosody/modules/mod_carbons_copies/
/usr/lib/prosody/modules/mod_carbons_copies/mod_carbons_copies.lua
/usr/lib/prosody/modules/mod_log_auth/
/usr/lib/prosody/modules/mod_log_auth/mod_log_auth.lua
/usr/lib/prosody/modules/mod_smacks/
/usr/lib/prosody/modules/mod_smacks/mod_smacks.lua
/usr/lib/prosody/modules/mod_storage_ldap/
/usr/lib/prosody/modules/mod_storage_ldap/ldap/
/usr/lib/prosody/modules/mod_storage_ldap/ldap/vcard.lib.lua
/usr/lib/prosody/modules/mod_storage_ldap/mod_storage_ldap.lua