* gnupg.7: Clarify that 'gpgv' doesn't encrypt, and that's not a bug.
* samplekeys.asc: Update 99242560.
* gpg.sgml: Clarify -u/--local-user and --default-key.  Note what happens
if you run 'gpg' without any commands.  Document --multifile.  Document
list-option show-unusable-subkeys.