sosreport command returns UnicodeDecodeError

Issue

• When I launch sosreport command, I get an error similar to the following:

  UnicodeDecodeError: 'ascii' codec can't decode byte 0xa3 in position 23: ordinal not in range(128)
  

• The complete traceback is:

  Running plugins. Please wait ...
  Running 1/84: abrt...             
  ...       
  Running 84/84: yum...
  Traceback (most recent call last):
  File "/usr/sbin/sosreport", line 25, in <module>
    main(sys.argv[1:])
  File "/usr/lib/python2.6/site-packages/sos/sosreport.py", line 1520, in main
    sos.execute()
  File "/usr/lib/python2.6/site-packages/sos/sosreport.py", line 1495, in execute
    self.plain_report()
  File "/usr/lib/python2.6/site-packages/sos/sosreport.py", line 1242, in plain_report
    fd.write(str(PlainTextReport(report)))
  File "/usr/lib/python2.6/site-packages/sos/reporting.py", line 146, in __str__
    return "\n".join(buf)
  UnicodeDecodeError: 'ascii' codec can't decode byte 0xa3 in position 23: ordinal not in range(128)