I know it appears as an "acute accent" but what I have type is an apostrophe (at least as far as I know! :-)). And this is a file name so I do not understand why Sarel talks about typing in word. I mean nothing was typed in word. Anyway I do accept and understand that there seems to be something wrong with this character. But my point is how did it get backed up initially in the first time? and doesn't that mean that rdiff-backup can handle it somehow? at least in the initial backup though not in incremental?. My real concern is that I am talking about many gigs of data here even if I rename this file to something simple as abc there is a chance for some other file to have characters like this.
In any case if this really a case of characters that rdiff-backup cannot handle should not this be flagged as an bug?