Document the cloud mess

Author: jhart-r7

modules/post/multi/general/wall.rb

@@ -37,7 +37,11 @@ def cowsay(text)
     # cowsay(1) chunks a message up into 39-byte chunks and wraps it in '| ' and ' |'
     # Rex::Text.wordwrap(text, 0, 39, ' |', '| ') almost does this, but won't
     # split a word that has > 39 characters in it which results in oddly formed
-    # text in the cowsay banner, so just do it by hand
+    # text in the cowsay banner, so just do it by hand.  This big mess wraps
+    # the provided text in an ASCII-cloud and then makes it look like the cloud
+    # is a thought/word coming from the ASCII-cow.  Each line in the
+    # ASCII-cloud is no more than 34-characters long, and the cloud corners are
+    # made to look rounded
     text_lines = text.scan(/.{1,34}/)
     max_length = text_lines.map(&:size).sort.last
     cloud_parts = []