Changes to squid-4.13 (23 Aug 2020):
- Regression Fix: Support parsing GREASEd (and future) TLS handshakes
- Bug 5051: Some collapsed revalidation responses never expire
- HTTP: Enforce token characters for field-name
- HTTP: Forbid obs-fold and bare CR whitespace in framing header fields
- HTTP: Improve Transfer-Encoding handling
- WCCP: Fix GCC-10 -Wstringop-truncation failures
- Honor on_unsupported_protocol for intercepted https_port
- Fix livelocking in peerDigestHandleReply
- Do not stall while debugging a scan of an empty store_table