Add some notes motivated by a user who experienced tunnel mode corruption due to his dotfiles sending output to stdout.
Add some notes motivated by a user who experienced tunnel mode
corruption due to his dotfiles sending output to stdout.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion