/usr/bin/bbdb-unlazy-lock is in bbdb 2.36-4.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | #!/usr/bin/perl
#
# Author: Christopher Kline <ckline@media.mit.edu>
#
# Revision 1.1  1997/10/06 00:56:14  simmonmt
# Initial revision
#
#
# Lazy-lock-mode has (had) a nasty habit of munging .bbdb files if you visited them
# with it on.  This script removes the lazy-lock mung
#
while( <STDIN> ) {
    s/#\(("[^"]*")( \d+ \d+ (nil)*(\(lazy-lock t\))*)*\)/$1/gi;
    print;
}
 |