message: Fixes typo in help message for data_collection_util tool
diff: @@ -165,8 +165,8 @@ public:
  // Options that are always available
  app.add_option("-o, --output-name", dcName)
  ->description(
  - "Name of the output mesh. Defaults to box{2,3}d for box meshes, and "
  - "the mfem mesh name when loading from an mfem file");
  + "Name of the output mesh. Defaults to box_{2,3}d for box meshes, "
  + "and the mfem mesh name when loading from an mfem file");
  app.add_flag("-v,--verbose", m_verboseOutput)
  ->description("Enable/disable verbose output")
  