[ANNOUNCE] NSPR 4.30 Release

The NSPR 4.30 release is now available.  The hg tag is
NSPR_4_30_RTM.  The source tar file can be downloaded from
https://ftp.mozilla.org/pub/mozilla.org/nspr/releases/v4.30/src/

NSPR 4.30 contains the following changes:
- support longer thread names on macOS
- fix a build failure on OpenBSD

For details, please refer to the list of related bugs:
https://bugzilla.mozilla.org/buglist.cgi?resolution=FIXED&query_format=advanced&product=NSPR&target_milestone=4.30

Thanks to all contributors to this release.
Kai