/usr/share/fwbuilder-5.3.7/configlets/bsd/ is in fwbuilder-common 5.3.7-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/fwbuilder-5.3.7/configlets/bsd/bridge_interface
/usr/share/fwbuilder-5.3.7/configlets/bsd/bridge_port
/usr/share/fwbuilder-5.3.7/configlets/bsd/carp_interface
/usr/share/fwbuilder-5.3.7/configlets/bsd/ifconfig_interface
/usr/share/fwbuilder-5.3.7/configlets/bsd/kernel_vars
/usr/share/fwbuilder-5.3.7/configlets/bsd/pfsync_interface
/usr/share/fwbuilder-5.3.7/configlets/bsd/shell_functions
/usr/share/fwbuilder-5.3.7/configlets/bsd/tools
/usr/share/fwbuilder-5.3.7/configlets/bsd/update_addresses
/usr/share/fwbuilder-5.3.7/configlets/bsd/update_bridge
/usr/share/fwbuilder-5.3.7/configlets/bsd/update_carp
/usr/share/fwbuilder-5.3.7/configlets/bsd/update_pfsync
/usr/share/fwbuilder-5.3.7/configlets/bsd/update_vlans