Thanks, ppmax. I HATE that "feature" of bash. No reason that should blow up, but it does. In fact, it's the only programming language of which I'm aware in which walking through commented out code can generate an error condition. Anyway, it's been fixed.
Initially, we thought we were going to need a workaround for MySQL, but that turned out to not be the case. So... the commented out code only appeared in the 11-12 version which we worked on first. Judging by last night's downloads, many folks have moved to Asterisk 13.