Did the script definitely touch each and every text file (assuming you do have dos2unix installed, otherwise that'd be why...)?
The other things I can think of is to check that all files have their mime-type set correctly (you don't have a binary file that's somehow marked as a text file checked in, perchance?).
That said, if you are in a multi-OS environment I consider it not a good idea to set svn:eol-style to CRLF as described in the blog post above if you are sharing and editing text files between OSs. Because if you do it that way, the files that look OK in Windows are littered with control characters in Unix. Better to use 'native' as the EOL style.