reduce visibility of methods

Author: vladak

opengrok-indexer/src/main/java/org/opengrok/indexer/history/SCCSHistoryParser.java

@@ -249,11 +249,11 @@ private int read() throws java.io.IOException {
         return -1;
     }
 
-    protected static File getSCCSFile(File file) {
+    private static File getSCCSFile(File file) {
         return getSCCSFile(file.getParent(), file.getName());
     }
 
-    protected static File getSCCSFile(String parent, String name) {
+    static File getSCCSFile(String parent, String name) {
         File f = new File(parent + "/SCCS/s." + name);
         if (!f.exists()) {
             return null;