#1138 fold code on '(' and ')'

[Russell Treleaven]

I like to do functions with one parameter per line.
I would like to be able to fold code on '(' and ')'.
See example below.

        ssl3_send_alert(
            s,
            SSL3_AL_FATAL,
            al
        );

b4n from the Geany project will attach a diff that implements folding on '(' and ')'.

[Colomban Wendling]

Patch to add support for folding on ().

[Neil Hodgson]

Committed as [5489b3].