Docker image build broken

[s1na]

I'm trying to build a docker image from source and it is failing on master and dev-upgrade, whereas normal make XDC works. Here is the error log:

...
5.972 go: downloading github.com/consensys/bavard v0.1.13
6.016 go: downloading rsc.io/tmplfunc v0.0.3
6.209 # cd /XDPoSChain; git status --porcelain
6.209 fatal: not a git repository (or any of the parent directories): .git
6.210 error obtaining VCS status: exit status 128
6.210 	Use -buildvcs=false to disable VCS stamping.
6.211 util.go:43: exit status 1
6.211 exit status 1
6.219 make: *** [Makefile:14: XDC] Error 1
------

 1 warning found (use docker --debug to expand):
 - FromAsCasing: 'as' and 'FROM' keywords' casing do not match (line 1)
Dockerfile:6
--------------------
   4 |
   5 |     ADD . /XDPoSChain
   6 | >>> RUN cd /XDPoSChain && make XDC
   7 |
   8 |     FROM alpine:latest
--------------------
ERROR: failed to solve: process "/bin/sh -c cd /XDPoSChain && make XDC" did not complete successfully: exit code: 2

[s1na]

I have been able to get it to build with this patch:

diff --git a/build/ci.go b/build/ci.go
index 7d09ec7c9..bf0ffe377 100644
--- a/build/ci.go
+++ b/build/ci.go
@@ -180,6 +180,7 @@ func buildFlags(env build.Environment) (flags []string) {
 	if len(ld) > 0 {
 		flags = append(flags, "-ldflags", strings.Join(ld, " "))
 	}
+	flags = append(flags, "-buildvcs=false")
 	return flags
 }