In order to bootstrap the COB cache, and also in case of issues,
supply a command for caching a set of patches/issues, or a single
patch/issue.
This is necessary since reads are not read-thru, it may appear that
COBs are missing when in fact they haven't been cached when first
moving over to the cache.
Signed-off-by: Fintan Halpenny <fintan.halpenny@gmail.com>
X-Clacks-Overhead: GNU Terry Pratchett