Another f-string
@@ -38,7 +38,7 @@ class Git(ContentProvider):
if hash is None:
self.log.error('Failed to check out ref %s', ref,
extra=dict(phase='failed'))
- raise ValueError(f'Failed to check out ref {ref}')
+ raise ValueError('Failed to check out ref {}'.format(ref))
# If the hash is resolved above, we should be able to reset to it
for line in execute_cmd(['git', 'reset', '--hard', hash],
cwd=output_dir,
