Auto merge of #2601 - JohnTitor:default-branch, r=jtgeibel
Auto merge of #2601 - JohnTitor:default-branch, r=jtgeibel

Use default branch alias instead of "master"

Fixes #2599
r? @jtgeibel

rust-lang/crates.io,rust-lang/crates.io,rust-lang/crates.io,rust-lang/crates.io