I intentionally excluded it, just like limited explicit number of ranges to exclude 0-9 and such. Adding it does trivialise more rules, but explodes target lists beyong reasonable limits.

@RReverser I didn't notice that it was intentional. I agree that this will explode some target beyond reasonable limit, e.g. sysprovide.xml will explode to 100 target which should be avoided. closing this PR accordingly.