Low priority: Unblock xml-security-c/1.4.0-3

[Russ Allbery]

xml-security-c 1.4.0-3 drops a Suggest for a package that no longer exists
(upstream did not include API documentation in their 1.4.0 release, so
there's no longer a separate doc package).  Resolves a debcheck
inconsistency error from the dangling dependency.  (There's also a typo
fix in the previous changelog entry.)

Unblock at your leisure; obviously not critical.

-- 
Russ Allbery (rra at debian.org)               <http://www.eyrie.org/~eagle/>