Follow-up Comment #5, bug #14243 (project findutils):
> So I guess \{ \} are part of basic regular expressions?
No. In basic regular expressions those would be invalid character escapes.
So that is not a valid POSIX basic regular expression. Because you would not
find those in a valid POSIX B
Follow-up Comment #4, bug #14243 (project findutils):
>From regex(7) (linux man pages collection
http://www.win.tue.nl/~aeb/linux/man/)
-[cut]--
Obsolete (``basic'') regular expressions differ in several
respects.
`|', `+', and `?' are ordinary characters and there
