find-exec-terminator

find-exec-terminator is a variable defined in `find-dired.el'.
Its value is

"+"

Documentation:
String that terminates "find -exec COMMAND {} ".
The value should include any needed quoting for the shell.
Common values are "+" and "\\;", with the former more efficient
than the latter.

You can customize this variable.

This variable was introduced, or its default value was changed, in version 24.1 of Emacs.