unix: use glibc release branch in Dockerfile
It shouldn't make a difference for generating types and consts, but
let's use the glibc release branch anyway.
Fixes golang/go#29873
Change-Id: I15a3df250f5ae6181b2d036a10e0523ebe44ac3f
Reviewed-on: https://go-review.googlesource.com/c/158997
Reviewed-by: Ian Lance Taylor <iant@golang.org>
diff --git a/unix/linux/Dockerfile b/unix/linux/Dockerfile
index 997fc2d..4e8252f 100644
--- a/unix/linux/Dockerfile
+++ b/unix/linux/Dockerfile
@@ -14,7 +14,7 @@
# Linux Kernel: Released 23 Dec 2018
RUN git clone --branch v4.20 --depth 1 https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux
# GNU C library: Released 01 Aug 2018 (we should try to get a secure way to clone this)
-RUN git clone --branch glibc-2.28 --depth 1 git://sourceware.org/git/glibc.git
+RUN git clone --branch release/2.28/master --depth 1 git://sourceware.org/git/glibc.git
# Get Go
ENV GOLANG_VERSION 1.12beta1
