liblognorm 2.1.1 released

[rgerhards]

liblognorm 2.1.1 is a bug-fix release.

It corrects several parser edge cases and an optimized TurboVM build failure:

• date-rfc5424 no longer risks integer overflow when parsing very long fractional timestamp components for timestamp-unix-ms.
• Literal matching with byte-counted input containing an embedded NUL is now bounded by the input terminator.
• A malformed date-rfc3164 parser definition with a null format is safely rejected instead of dereferencing a null pointer.
• TurboVM optimized builds no longer fail because of the repeat-name-length warning.

Existing valid rulebases remain compatible. TurboVM remains optional and is enabled with ./configure --enable-turbo.

For the complete release record, see the 2.1.1 ChangeLog.