removed shQuote from codeGeno function

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/synbreed@508 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
correction of shQuote in codeGeno function

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/synbreed@509 edb9625f-4e0d-4859-8d74-9fd3b1da38cb