pidgin/ljfisher-ssl-client-auth

jabber: Check for empty string when setting mood.

2011-06-27, Paul Aurich
77896a9a09c2
jabber: Check for empty string when setting mood.

The xmlnode API didn't check for the empty string ("") as
node name, which leads to...broken XML. I added those
checks to xmlnode, and fixed this occurrence in usermood.

Fixes #14342
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