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-rw-r--r--cloudinit/config/cc_seed_random.py3
1 files changed, 2 insertions, 1 deletions
diff --git a/cloudinit/config/cc_seed_random.py b/cloudinit/config/cc_seed_random.py
index e76b9c09..65f6e777 100644
--- a/cloudinit/config/cc_seed_random.py
+++ b/cloudinit/config/cc_seed_random.py
@@ -95,7 +95,8 @@ def handle_random_seed_command(command, required, env=None):
cmd = command[0]
if not util.which(cmd):
if required:
- raise ValueError("command '%s' not found but required=true", cmd)
+ raise ValueError(
+ "command '{cmd}' not found but required=true".format(cmd=cmd))
else:
LOG.debug("command '%s' not found for seed_command", cmd)
return