openbmctool: minor sel issues

[ssombar]

openbmctool: minor sel issues in openbmctool.py Version: 1.07 I noticed two minor issues

   1. 'sel resolve all' always gives 'Unable to set the alert to resolved'.  No alerts are resolved.

   2. sel list of an individual eSEL, for example  'sel list 19', gave the same outupt
      as 'sel list' with no parameters.  That is, the details for all eSELs was listed.
     'sel get 19' did the same.