remollSearchPath doesn't allow full path for magnet files

[cipriangal]

Environment: (where does this bug occur, have you tried other environments)

• branch (master for latest released): develop
• revision (HEAD for most recent): 1652118
• OS or system: ifarm CUE 2.5

Steps to reproduce: (give a step by step account of how to trigger the bug)

1. add full path to https://github.com/JeffersonLab/remoll/blob/develop/macros/load_magnetic_fieldmaps.mac#L7 (such as /work/halla/moller12gev/ciprian/moller/remoll/map_directory/V2U.1a.50cm.txt )
2. run build/remoll macros/runexample.mac

Expected Result: (what do you expect when you execute the steps above)

it completes

Actual Result: (what do you get when you execute the steps above)

it crashes mostly (somehow sometimes it has some other errors or directly crashes without an exception)

terminate  called after throwing an instance of 'std::length_error'
    what(): basic_string::_S_create

As far as I can tell the crash happens on line: https://github.com/JeffersonLab/remoll/blob/develop/src/remollSearchPath.cc#L49

[rakithab]

@cipriangal Can we close this issue? It seems like you made a commit to fix the problem

[cipriangal]

I think this needs to remain open since my hack just prevents it from checking if the path is resolvable. So if someone provides the wrong path it will fail in other ways.