Merge psp-deb2.ntp.org:/home/stenn/ntp-stable

into  psp-deb2.ntp.org:/home/stenn/ntp-stable-3694

bk: 5f8fdac6CME1pti4UGZpCInh3sflgw

diff --cc ChangeLog
index 36e2346939060a199cdb59c1ae823c9d205d3050,005ec1eef0fa58ab413e73e64af389e5783ba808..931fedadd66cf98cf7015a9811f6ec1d4386aec5
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--- 2/ChangeLog
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 +
+ * [Bug 3694] NMEA refclock appears to unnecessarily require location in messages
+   - misleading title; essentially a request to ignore the receiver status.
+     Added a mode bit for this. <perlinger@ntp.org>
 +* [Bug 3693] Improvement of error handling key lengths <perlinger@ntp.org>
 +  - original patch by Richard Schmidt, with mods & unit test fixes
 +* [Bug 3692] /dev/gpsN requirement prevents KPPS <perlinger@ntp.org>
 +  - implement/wrap 'realpath()' to resolve symlinks in device names
 +* [Bug 3690] newline in ntp clock variable (parse) <perlinger@ntp.org>
 +  - patch by Frank Kardel
 +* [Bug 3689] Extension for MD5, SHA-1 and other keys <perlinger@ntp.org>
 +  - ntp{q,dc} now use the same password processing as ntpd does in the key
 +    file, so havin a binary secret >= 11 bytes is possible for all keys.
 +    (This is a different approach to the roblem than suggested)
 +* [Bug 3688] GCC 10 build errors in testsuite <perlinger@ntp.org>
 +* [Bug 3676] compiler warnings (CMAC, interrupt_buf, typo, fallthrough)
 +  - applied patches by Gerry Garvey
 +* [Bug 3675] ntpq ccmds[] stores pointer to non-persistent storage
 +* [Bug 3672] fix biased selection in median cut <perlinger@ntp.org>
 +* [Bug 3666] avoid unlimited receive buffer allocation <perlinger@ntp.org>
 +  - follow-up: fix inverted sense in check, reset shortfall counter
 +* [Bug 3626] (SNTP) UTC offset calculation needs dst flag <perlinger@ntp.org>
 +  - applied patch by Gerry Garvey
 +* Implement NTP_FUNC_REALPATH.  <stenn@ntp.org>
  
  ---
  (4.2.8p15) 2020/06/23 Released by Harlan Stenn <stenn@ntp.org>