Exactly this.
Just because you wrote your documentation a certain way, doesn't automatically mean that you feel a certain way about any particular group, or that your users are primarily a certain gender. It may just be writing what pronoun you are most familiar with.
In this particular case, we can see that the author didn't exactly make the best case for himself.
However, there was never a problem to begin with until the person that requested the change also accused the the author of assuming that the user/dev of the OS is male.
If that little bit of accusation would have been left out, and they just put a note like "grammatical correction" it may have just been accepted and moved on. Instead they asked for a change while accusing the author of feeling a certain way.
Waze works well also.
Edit: I'm getting a lot of down votes and just wanted to clarify that I have never seen an ad in Waze.
I 100% believe people saying there are a lot of ads. I think the way that I have my phone setup is why I'm not getting ads.
Will definitely have to look into the others mentioned here.