information that would likely be added after the log was generated. The idea
is that this data should be in key=value\n format.

darshan-convert was updated to put the previous version in the comment field
and darshan-parser is updated to return the previous version field if it
exists.


git-svn-id: https://svn.mcs.anl.gov/repos/darshan/trunk@435 3b7491f3-a168-0410-bf4b-c445ed680a29