Minor log message fixes

Author: lesserwhirls

cdm/core/src/main/java/ucar/nc2/util/DiskCache.java

@@ -311,7 +311,7 @@ public static void cleanCache(long maxBytes, StringBuilder sbuff) {
    */
   public static void cleanCache(long maxBytes, Comparator<File> fileComparator, StringBuilder sbuff) {
     if (sbuff != null)
-      sbuff.append("DiskCache clean maxBytes= ").append(maxBytes).append("on dir ").append(root).append("\n");
+      sbuff.append("DiskCache clean maxBytes= ").append(maxBytes).append(" on dir ").append(root).append("\n");
 
     File dir = new File(root);
     long total = 0, total_delete = 0;

cdm/core/src/main/java/ucar/nc2/util/DiskCache2.java

@@ -39,7 +39,7 @@ public class DiskCache2 {
   public static void exit() {
     if (timer != null) {
       timer.cancel();
-      cacheLog.info("DiskCache2.exit()%n");
+      cacheLog.info("DiskCache2.exit()");
     }
     timer = null;
   }

cdm/core/src/main/java/ucar/nc2/util/cache/FileCache.java

@@ -80,7 +80,7 @@ public static void shutdown() {
     synchronized (lock) {
       if (timer != null) {
         timer.cancel();
-        cacheLog.info("FileCache.shutdown called%n");
+        cacheLog.info("FileCache.shutdown called");
       }
       timer = null;
     }