I can see how master/slave could be problematic, but the "master" branch doesn't imply that there are slave branches, and certainly isn't racially loaded, just like a master bedroom doesn't imply there are slave bedrooms.
Either way, it doesn't really make any difference, and seems like a hollow gesture to me, but if it means that diversity increases on GitHub, then I'm all for it.
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I can see how master/slave could be problematic, but the "master" branch doesn't imply that there are slave branches, and certainly isn't racially loaded, just like a master bedroom doesn't imply there are slave bedrooms.
Either way, it doesn't really make any difference, and seems like a hollow gesture to me, but if it means that diversity increases on GitHub, then I'm all for it.