[Debian-med-packaging] Bug#969597: libzstd: Please correct version in symbol file

[Sebastian Andrzej Siewior]

Package: libzstd
Version: 1.4.5+dfsg-4
Severity: important

The symbol file records for instance the following symbols:
	ZSTD_minCLevel
	ZSTD_compressStream2

as present in 1.3.8. This isn't entirely correct.  Both symbols were
present in 1.3.8 but they were hidden behind ZSTD_STATIC_LINKING_ONLY
and only available for static linking.
They are available for dynamic linking since 1.4.0, please see commit
   d7d89513d6a21 ("Stabilize advance API")

which moves ZSTD_STATIC_LINKING_ONLY and makes the symbols available.
The commit on gh:
   https://github.com/facebook/zstd/commit/d7d89513d6a216cfa920208ce82f9128616bab7c

Sebastian