LArPandora module does not follow the approved 1 file per module format
Modules should have only a *_module.cc file, no associated .h and .cxx files. LArPandora_module.cc currently does not conform to this format.
The ART developers say using the 3 file format "gives unnecessary complexity, increases dependencies (multiple modules will depend on a given library, the only thing in common between them being that their unrelated guts are all in the same library) and increases the likelihood of unintentional and/or ill-advised use of module methods / data from outside said modules, thereby breaking the event model and event data integrity."
The files should be merged and hopefully preserve the history information if at all possible.