Bug 667935 - DS pipe log script's logregex.py plugin is not redirecting the log output to the text file
    
    https://bugzilla.redhat.com/show_bug.cgi?id=667935
    Resolves: bug 667935
    Bug Description: DS pipe log script's logregex.py plugin is not redirecting the log output to the text file
    Reviewed by: nkinder (Thanks!)
    Branch: master
    Fix Description: The logregex plugin function is really just a thin wrapper
    around the builtin plugin - the only difference is that logregex will only
    store those lines that match the given regexes.  The fix is to just remove
    the post function, and make the plugin just call the main plugin function
    with the line if it matches the regexes.  The only tricky part is that we
    have to increment total lines in the logregex plugin and decrement it when
    we call the main pluginfunction, in order to keep an accurate count of the
    total number of lines read.  I also cleaned up an error message and made
    the print out flush.
    Platforms tested: RHEL6 x86_64
    Flag Day: no
    Doc impact: no