Ambiguous handling of codes returned by functions util_map()

[grom72]

ISSUE: Ambiguous handling of codes returned by functions util_map()

https://github.com/pmem/pmdk/blob/master/src/test/tools/cmpmap/cmpmap.c#L203?
https://github.com/pmem/pmdk/blob/master/src/test/tools/cmpmap/cmpmap.c#L213

Environment Information

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