NOTE: I think this is a good thing.
I've read a lot of computer books, as I'm sure many of you have, and I've noticed that many (far more than half) of these books use "she" and "her" to refer to unnamed programmers/users/etc, rather than "he" or "him". I don't read a lot of other nonfiction, so I can't comment on other subject areas, but I've been surprised at how consistent this seems to be in programming literature, given that "he" and "him" are much more common in general. Really I think it's a pretty cool thing, especially given that programming is such a male-dominated field; I wouldn't be at all surprised if the literature reinforced this, but instead it seems to be pushing the other way.
Anyway, assuming I'm not imagining this, does anybody know how it came to pass? Was there a group of publishers and authors that got together one day and decided to make it happen? Did some publisher start doing it and become a trend-setter? Has it been this way since day one? I haven't been able to locate any discussion of this on the web, but I've been wondering about it for years.
By the way, this clearly doesn't relate to getting Java code to compile or diagnosing obscure C++ linker errors, but I still think it's programming-related, as much so as any other question about programming books.