Updated patch working with latest FreeBSD clang 10.x and 11.x (release 13.0 coming in a month has 11.0.1)

I'll update the patch with the code I'm using at present in the FreeBSD port, which I'm now testing for the update to the latest version.

These look fine to me and I am including these in the test port I've made. With these patches I ma able to compile a binary.

In D1594#140339, @nephele wrote:

@Stan Your patch looks alright, but this flag seems to refer to reserving swap space, not memory overcommit (which linux also does per default afaik)

Here is the error for the add call (the one for set is the same):

Added myself to programming.json.

@Stan I did not understand, sorry. Going to update the patch soon.

madpilot is ok for the nickname and if it causes no problems I'd like my real name (Guido Falsi) attached in additon.