curl: 37: `curl_mprintf` `%F` format specifier not consumed, causing variadic argument desynchronization

Summary docs/libcurl/curlmprintf.md documents %F as a conversion that consumes a double, alongside %f. However, parseconversion in lib/mprintf.c has no F case — it falls through to the default branch and returns without assigning an input slot. In a sequential format like "%F%s", the %s conversio...

curl: 34: `curl_mprintf` reads `double` for documented `long double` conversions — uninitialized value disclosure

Summary docs/libcurl/curlmprintf.md documents that the L length modifier makes floating-point conversions %f, %e, %E, %g, %G accept a long double argument. The implementation in lib/mprintf.c recognizes L and sets FLAGSLONGDOUBLE, but the conversion switch %f/%e/%E/%g/%G unconditionally selects...