K 10
svn:author
V 3
mjg
K 8
svn:date
V 27
2020-07-14T21:19:33.476307Z
K 7
svn:log
V 292
cache: make negative shrinker round robin on all lists every time

Previously it would check 4, 3, 2, 1 lists. In practice by the time
it is getting called all lists have some elements and consequently
this does not result in new evictions.

Nonetheless, the code is clearer.

Tested by:	pho

END