improve comment for lyr file detection
@@ -302,6 +302,7 @@ public class POIFSContainerDetector implements Detector {
} else if (names.contains("Layer")) {
//in one test file, also saw LayerSmallImage and LayerLargeImage
//maybe add those if we get false positives?
+ //in other test files there was a singl entry for "Layer"
return ESRI_LAYER;
} else {
for (String name : names) {
