json parse includes the file name in error messages, so don't print the error twice.
json parse includes the file name in error messages, so don't print
the error twice.

Change-Id: I86061013e41597d0c245563a034e9580e537b6d1
Signed-off-by: Rob Adams <dc34e1981fc17062c98433ad1bfcab20a4e3a66c@readams.net>

mhrobinson/opflex,opendaylight/opflex,mhrobinson/opflex,mhrobinson/opflex,opendaylight/opflex,opendaylight/opflex,mhrobinson/opflex,opendaylight/opflex