Comment 3 for bug 591547

In my case, this is caused by soft linking /bin/bash as /bin/sh. Both /bin/zsh and /bin/dash behave properly, but for some reason bash hates the if [ syntax on line 3 of update-monodoc. Personally, I would still categorize this as a bug in update-monodoc as these sorts of scripts should be written in very generic Bourne Shell syntax... Either that or it's a bug in the bash shell parser.