message: Minor clarification to a comment
diff: #cmakedefine SPARSEHASH_HASHFUN_NAMESPACE @SPARSEHASH_HASHFUN_NAMESPACE@
  /*
  - * Inline axom's symbols, e.g. the AXOM_EXPORT macro
  + * Inline axom's macros related to export symbols, e.g. AXOM_EXPORT
  */
  @INLINED_AXOM_EXPORTS@
  