locate-prompt-for-command

locate-prompt-for-command is a variable defined in `locate.el'.
Its value is

nil

• This variable may be risky if used as a file-local variable.

Documentation:
If non-nil, the `locate' command prompts for a command to run.
Otherwise, that behavior is invoked via a prefix argument.

Setting this option non-nil actually inverts the meaning of a prefix arg;
that is, with a prefix arg, you get the default behavior.

You can customize this variable.