Merge with develop

--HG--
branch : compatibility-develop

code/nel/tools/3d/plugin_max/nel_export/nel_export_export.cpp

@@ -265,7 +265,7 @@ bool CNelExport::exportAnim (const std::string &sPath, std::vector<INode*>& vect
 			{
 				// try to get the prefix from the appData if present. If not, takes it from the node name
 				nodeName = CExportNel::getScriptAppData (vectNode[n], NEL3D_APPDATA_INSTANCE_NAME, "");
-				if (nodeName == "") // not found ?
+				if (nodeName.empty()) // not found ?
 				{
 					nodeName=CExportNel::getName (*vectNode[n]);
 				}

code/nel/tools/3d/plugin_max/nel_mesh_lib/export_radial_normal.cpp

@@ -79,7 +79,7 @@ void CRadialVertices::init (INode *node, Mesh *mesh, TimeValue time, Interface &
 			{
 				// Output error message
 				char msg[512];
-				smprintf (msg, 512, "Can't find pivot node named '%s'", pivotName.c_str());
+				smprintf (msg, 512, "Can't find pivot node named '%s' of length %u", pivotName.c_str(), (uint)pivotName.length());
 				nelExport.outputErrorMessage (msg);
 			}
 		}