Added support for extended pkgdep version matching.

xbps from launchpad head branch has gained support for extended
pkg version matching, as specified in:

https://blueprints.launchpad.net/xbps/+spec/improved-version-matching

Now it's required to specify the operator(s) for required versions
in the depends files and "Add_dependency" option in build templates.

xbps-src now requires xbps utils 20091107.

--HG--
extra : convert_revision : fc09fa707483a75e0b6f68445721fc1a9166cdad

xbps-src/shutils/metadata.sh

@@ -300,7 +300,7 @@ _EOF
 		echo "<key>run_depends</key>" >> $TMPFPROPS
 		echo "<array>" >> $TMPFPROPS
 		for f in ${run_depends}; do
-			echo "<string>$f</string>" >> $TMPFPROPS
+			echo "<string>$(echo $f|sed "s|<|\&lt;|g;s|>|\&gt;|g")</string>" >> $TMPFPROPS
 		done
 		echo "</array>" >> $TMPFPROPS
 	fi