Surrounding without spaces

[ghost]

How can the surrounding be done without spaces after and before brackets? Currently when I do ysiw( with cursor on w I get ( world ).

[lackovic]

How can the surrounding be done without spaces after and before brackets?

Using an opening bracket will add a space, using a closing bracket will not add a space.

Examples:

• ysiw( => ( world )
• ysiw) => (world)