Docs: Update ADIOS2_USE_Endian_Reverse

docs/user_guide/source/setting_up/source/cmake.rst

@@ -98,7 +98,7 @@ VAR                            VALUE                     Description
 ``ADIOS2_USE_MGARD``           **ON**/OFF      `MGARD <https://github.com/CODARcode/MGARD>`_ compression (experimental).
 ``ADIOS2_USE_PNG``             **ON**/OFF      `PNG <https://libpng.org>`_ compression (experimental).
 ``ADIOS2_USE_Blosc``           **ON**/OFF      `Blosc <http://blosc.org/>`_ compression (experimental).
-``ADIOS2_USE_Endian_Reverse``  ON/**OFF**      Big/Little Endian Interoperability for different endianness platforms at write and read.
+``ADIOS2_USE_Endian_Reverse``  ON/**OFF**      Enable endian conversion if a different endianness is detected between write and read.
 ============================= ================ ==========================================================================================================================================================================================================================
 
 In addition to the ``ADIOS2_USE_Feature`` options, the following options are also available to control how the library gets built:

source/adios2/engine/bp4/BP4Writer.cpp

@@ -281,7 +281,7 @@ void BP4Writer::InitBPBuffer()
                 throw std::runtime_error(
                     "ERROR: previous run generated BigEndian bp file, "
                     "this version of ADIOS2 wasn't compiled "
-                    "with the cmake flag -DADIOS2_USE_ENDIAN_REVERSE=ON "
+                    "with the cmake flag -DADIOS2_USE_Endian_Reverse=ON "
                     "explicitly, in call to Open\n");
             }
             const size_t pos_last_step = preMetadataIndexFileSize - 64;