message: fix copy/paste errors
diff: } \
  else \
  { \
  - axom::slic::abortIfEnabled(axom::slic::message::Error); \
  + axom::slic::abortIfEnabled(axom::slic::message::Warning); \
  } \
  } while(axom::slic::detail::false_value)
  } \
  else \
  { \
  - axom::slic::abortIfEnabled(axom::slic::message::Error); \
  + axom::slic::abortIfEnabled(axom::slic::message::Warning); \
  } \
  } \
  } while(axom::slic::detail::false_value)
  