more robust logic for returning retcod when ignored & failure
authorThierry Parmentelat <thierry.parmentelat@inria.fr>
Sat, 25 Jan 2014 22:49:02 +0000 (23:49 +0100)
committerThierry Parmentelat <thierry.parmentelat@inria.fr>
Sat, 25 Jan 2014 22:49:02 +0000 (23:49 +0100)
also revert to the following scheme as some exit(1) were already done elsewhere
    # 0: SUCCESS
    # 1: FAILURE
    # 2: SUCCESS but some ignored steps failed
    # 3: OTHER ERROR


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