asciidoc: Updated (8.4.5 -> 8.6.4)

textproc/asciidoc/asciidoc.desc

@@ -32,7 +32,7 @@
 [L] GPL
 
 [S] Stable
-[V] 8.4.5
+[V] 8.6.4
 [P] X -----5---9 160.900
 
-[D] 1287179768 asciidoc-8.4.5.tar.gz http://dl.sourceforge.net/sourceforge/asciidoc/
+[D] 2035076676 asciidoc-8.6.4.tar.gz http://dl.sourceforge.net/sourceforge/asciidoc/