clang-tidy: avoid/silence bugprone-not-null-terminated-result#20723
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vszakats wants to merge 3 commits intocurl:masterfrom
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clang-tidy: avoid/silence bugprone-not-null-terminated-result#20723vszakats wants to merge 3 commits intocurl:masterfrom
bugprone-not-null-terminated-result#20723vszakats wants to merge 3 commits intocurl:masterfrom
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```
/home/runner/work/curl/curl/tests/server/mqttd.c:354:3: error: the result from calling 'memcpy' is not null-terminated [bugprone-not-null-terminated-result,-warnings-as-errors]
354 | memcpy(&packet[3 + encodedlen], topic, topiclen);
| ^~~~~~ ~~~~~~~~~~
| strcpy (char *)
/home/runner/work/curl/curl/tests/server/rtspd.c:320:19: error: the result from calling 'memcpy' is not null-terminated [bugprone-not-null-terminated-result,-warnings-as-errors]
320 | memcpy(rtp_scratch + 4 + i, RTP_DATA, RTP_DATA_SIZE);
| ^~~~~~ ~~~~~~~~~~~~~~~
| strcpy
```
https://github.com/curl/curl/actions/runs/22405414997/job/64863682328?pr=20720
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Prefer
sizeof()overstrlen(), static const variables over macros.Add a couple of
NOLINTs to silence false positives.Also sync similar code patterns between libtests.
Cherry-picked from #20720