mobi on Kindle2 missing lines beginning with '#'

Havent noticed this in the discussion, or the known issues regarding the Kindle’s mobi format. My apologies if I missed it.

Some code examples are missing from the mobi version:
for example:

somewhere between locations 1064-1068, missing: #!/opt/local/bin/ruby

1. ERROR: Incorrect for most production servers!

somewhere between locations 1074-1079, missing: #!/usr/local/bin/ruby
...
and after the following paragraph, missing:

1. Link to the actual location of Ruby from an aliased location

seems the code sample lines beginning with ’#’ are missing from the mobi format. (They are present in the pdf – but we cant put that on a Kindle).

Is this unavoidable, or can a second version be created that addresses this problem?

Thanks in advance.