create_images.py: Strip newlines from the Git commit
diff --git a/buildkite/create_images.py b/buildkite/create_images.py
index 1762f86..1c7c807 100755
--- a/buildkite/create_images.py
+++ b/buildkite/create_images.py
@@ -222,7 +222,7 @@
try:
git_commit = subprocess.check_output(['git', 'rev-parse', '--verify', 'HEAD'],
- universal_newlines=True)
+ universal_newlines=True).strip()
except subprocess.CalledProcessError:
print("Could not get current Git commit hash. You have to run "
"create_images.py from a Git repository.", file=sys.stderr)