tidy-up: miscellaneous

- CMake/CurlTests.c: sync indent with rest of file and most of code.
- cmake: sync term in `_CURL_PREFILL` description with rest of code.
- curl_setup.h: document function relying on `_CRT_SECURE_NO_WARNINGS`.
- tests/http/scorecard.py: typo in message.
- 'Quiche' -> 'quiche'.
- fix comment and formatting nits.

Closes #22378

lib/vssh/libssh2.c

@@ -373,8 +373,8 @@ static CURLcode ssh_knownhost(struct Curl_easy *data,
                                           (conn->origin->port != PORT_SSH) ?
                                           conn->origin->port : -1,
                                           remotekey, keylen,
-                                          LIBSSH2_KNOWNHOST_TYPE_PLAIN|
-                                          LIBSSH2_KNOWNHOST_KEYENC_RAW|
+                                          LIBSSH2_KNOWNHOST_TYPE_PLAIN |
+                                          LIBSSH2_KNOWNHOST_KEYENC_RAW |
                                           keybit,
                                           &host);