[db-common] Ignore personname wrapper for DocBook 5
[db-common] Ignore personname wrapper for DocBook 5

DocBook 5 doesn't allow unadorned name components (e.g. surname) anymore.  These
are present in a personname element, so when we see that when we're generating a
personal name, don't actually emit the personname element, only its contents.

Signed-off-by: brian m. carlson <738bdd359be778fee9f0fc4e2934ad72f436ceda@crustytoothpaste.ath.cx>

Distrotech/yelp-xsl,Distrotech/yelp-xsl