Merge pull request #18 from xueyumusic/master

clean redundant blank lines and indent some lines

BTrees/BTreeModuleTemplate.c

@@ -363,21 +363,11 @@ PreviousBucket(Bucket **current, Bucket *first)
 	PER_USE_OR_RETURN(first, -1);
         first = first->next;
 
+    	((trailing)->state==cPersistent_STICKY_STATE
+     	&&
+     	((trailing)->state=cPersistent_UPTODATE_STATE));
 
-
-
-
-
-
-    ((trailing)->state==cPersistent_STICKY_STATE
-     &&
-     ((trailing)->state=cPersistent_UPTODATE_STATE));
-
-    PER_ACCESSED(trailing);
-
-
-
-
+    	PER_ACCESSED(trailing);
 
 	if (first == *current) {
 	    *current = trailing;