Sometimes it's useful to disable user patches, without having to move existing patches to a different directory.
https://bugs.gentoo.org/782655 duplicates this. The only difference is the dash.
*** Bug 782655 has been marked as a duplicate of this bug. ***
See attachment #747180 [details, diff] and attachment #703893 [details, diff] for a patch.
Since this has become the main thread, please consider not to include the dash. Most FEATURES flags don't have it including the ones starting with 'user', and is only additional typing.