Fix an exception in run_process logging. (#1504)
Fix an exception in run_process logging. (#1504)

Use repr instead of str for logging the command, as it looks like it can
contain binary/non-utf8 characters.
google/clusterfuzz,google/clusterfuzz,google/clusterfuzz,google/clusterfuzz,google/clusterfuzz,google/clusterfuzz,google/clusterfuzz,google/clusterfuzz