Fix merge
Exact size of a binary + hex snippet
Fix for review
Fix for review
Comment about RFC 2045 + hygiene
Fixed signed/unsigned comparison warning in stringprintf.cc.
merged #2844 yaml ruby driver false positive
Merge branch 'sam_2859' into next
merge of #2837 atomic_get_set intermittent error
fixing style complaints
Add failing regression test
Truncate changes array properly
Implement warnings propagation.
Make this actually load in gdb without error
Per @mlucy, lose the std::string call.

I am unhappy about this in the abstract because `const char *`s and
`.c_str()` everywhere don't really belong in a C++ codebase--but the way
we do `wire_string_t` is sufficiently awkward that it's actually easier
to use the C strings.  I want to fix that, but not as part of this issue.
Per @mlucy, use rcheck_datum.
Per @mlucy, use const auto & for these loops.
Actually use warnings field
cluster_version_t::v1_15 skipped a numeric value. This sets it to 3. Sorry, will break tables on next.
Reviewed by @srh in CR 1936
merging #2816 All tests should run with a `--cache-size` parameter