cmd: print the error before exiting non-zero#77
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main swallowed the error returned by cmds.Execute and exited 1 with no hint about what went wrong. Whatever cobra had silenced (validation issues, mis-typed flags) was lost. Print it to stderr first. Signed-off-by: Tamal Saha <tamal@appscode.com>
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Summary
`main` swallowed the error from `cmds.Execute()` and exited 1 with no hint. Whatever cobra had silenced (validation issues, mis-typed flags) was lost. Print it to stderr first so operators can debug startup failures.
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