Description of problem:
When I try uploading an expired certificate in the interactive mode, I get this proper error message:

The provided certificate is expired or invalid.  Please upload a valid one

I'd expect a similar response in the CLI, but here's what actually happens:

[root@rhua ~]# rhui-manager cert upload --cert shortlivedcert.pem 

An unexpected error has occurred during the last operation.


[root@rhua ~]#

When I look at the end of /root/.rhui/rhui.log, I find this:

2017-12-01 14:54:54,516 - Connecting to RHUA [rhua.example.com]...
2017-12-01 14:54:54,520 - Successfully connected to [rhua.example.com]
2017-12-01 14:54:54,522 - This certificate is invalid or expired.
None
2017-12-01 14:54:54,522 - Unexpected error caught at the shell level
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/rhui/tools/cli.py", line 66, in run
    Cli.run(self, args)
  File "/usr/lib/python2.7/site-packages/rhui/common/cli.py", line 272, in run
    command_or_section.execute(remaining_args)
  File "/usr/lib/python2.7/site-packages/rhui/common/cli.py", line 113, in execute
    self.method(**arg_dict)
  File "/usr/lib/python2.7/site-packages/rhui/tools/commands/cert.py", line 57, in upload
    self._upload_cert(valid_cert_filename)
  File "/usr/lib/python2.7/site-packages/rhui/tools/commands/cert.py", line 101, in _upload_cert
    self.cert_manager.add_certificate(valid_cert_filename)
  File "/usr/lib/python2.7/site-packages/rhui/tools/cert_manager.py", line 273, in add_certificate
    raise InvalidOrExpiredCertificate()
InvalidOrExpiredCertificate
2017-12-01 14:54:54,523 - 
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/rhui/tools/cli.py", line 66, in run
    Cli.run(self, args)
  File "/usr/lib/python2.7/site-packages/rhui/common/cli.py", line 272, in run
    command_or_section.execute(remaining_args)
  File "/usr/lib/python2.7/site-packages/rhui/common/cli.py", line 113, in execute
    self.method(**arg_dict)
  File "/usr/lib/python2.7/site-packages/rhui/tools/commands/cert.py", line 57, in upload
    self._upload_cert(valid_cert_filename)
  File "/usr/lib/python2.7/site-packages/rhui/tools/commands/cert.py", line 101, in _upload_cert
    self.cert_manager.add_certificate(valid_cert_filename)
  File "/usr/lib/python2.7/site-packages/rhui/tools/cert_manager.py", line 273, in add_certificate
    raise InvalidOrExpiredCertificate()
InvalidOrExpiredCertificate

But I only look there because I already know where to look. Please allow the CLI to print an error message that says it all, or at lease add the location of this log file to the current error message (such as Please check ~/.rhui/rhui.log for more details.)

Version-Release number of selected component (if applicable):
rh-rhui-tools-3.0.1-3.el7ui.noarch