Make code style of hasBOM() consistent with getBOMCharsetName()
diff --git a/src/main/java/org/apache/commons/io/input/BOMInputStream.java b/src/main/java/org/apache/commons/io/input/BOMInputStream.java
index 02b4f2f..d01ba9c 100644
--- a/src/main/java/org/apache/commons/io/input/BOMInputStream.java
+++ b/src/main/java/org/apache/commons/io/input/BOMInputStream.java
@@ -202,7 +202,8 @@
         if (!boms.contains(bom)) {
             throw new IllegalArgumentException("Stream not configure to detect " + bom);
         }
-        return byteOrderMark != null && getBOM().equals(bom);
+        getBOM();
+        return byteOrderMark != null && byteOrderMark.equals(bom);
     }
 
     /**