closes https://github.com/assimp/assimp/issues/1450: use correct name of exporter to gltf2

code/Exporter.cpp

@@ -145,7 +145,7 @@ Exporter::ExportFormatEntry gExporters[] =
         aiProcess_JoinIdenticalVertices | aiProcess_Triangulate | aiProcess_SortByPType),
     Exporter::ExportFormatEntry( "glb", "GL Transmission Format (binary)", "glb", &ExportSceneGLB,
         aiProcess_JoinIdenticalVertices | aiProcess_Triangulate | aiProcess_SortByPType),
-    Exporter::ExportFormatEntry( "gltf2", "GL Transmission Format v. 2", "gltf", &ExportSceneGLTF2,
+    Exporter::ExportFormatEntry( "gltf2", "GL Transmission Format v. 2", "gltf2", &ExportSceneGLTF2,
         aiProcess_JoinIdenticalVertices | aiProcess_Triangulate | aiProcess_SortByPType),
 #endif