diff --git a/includes/database/database.inc b/includes/database/database.inc
index 4cc1a33..7b77991 100644
--- a/includes/database/database.inc
+++ b/includes/database/database.inc
@@ -194,7 +194,7 @@ abstract class DatabaseConnection extends PDO {
 
   /**
    * The key representing this connection.
-   * 
+   *
    * The key is a unique string which identifies a database connection. A
    * connection can be a single server or a cluster of master and slaves (use
    * target to pick between master and slave).
diff --git a/includes/database/query.inc b/includes/database/query.inc
index 23b652f..f0522ad 100644
--- a/includes/database/query.inc
+++ b/includes/database/query.inc
@@ -77,7 +77,7 @@ interface QueryConditionInterface {
 
   /**
    * Sets a condition that the specified subquery returns values.
-   * 
+   *
    * @param SelectQueryInterface $select
    *   The subquery that must contain results.
    *
@@ -85,10 +85,10 @@ interface QueryConditionInterface {
    *   The called object.
    */
   public function exists(SelectQueryInterface $select);
-  
+
   /**
    * Sets a condition that the specified subquery returns no values.
-   * 
+   *
    * @param SelectQueryInterface $select
    *   The subquery that must not contain results.
    *
@@ -96,7 +96,7 @@ interface QueryConditionInterface {
    *   The called object.
    */
   public function notExists(SelectQueryInterface $select);
-  
+
   /**
    * Gets a complete list of all conditions in this conditional clause.
    *
@@ -264,14 +264,14 @@ abstract class Query implements QueryPlaceholderInterface {
 
   /**
    * The target of the connection object.
-   * 
+   *
    * @var string
    */
   protected $connectionTarget;
 
   /**
    * The key of the connection object.
-   * 
+   *
    * @var string
    */
   protected $connectionKey;
@@ -764,7 +764,7 @@ class DeleteQuery extends Query implements QueryConditionInterface {
     $this->condition->notExists($select);
     return $this;
   }
-  
+
   /**
    * Implements QueryConditionInterface::conditions().
    */
@@ -999,7 +999,7 @@ class UpdateQuery extends Query implements QueryConditionInterface {
     $this->condition->notExists($select);
     return $this;
   }
-  
+
   /**
    * Implements QueryConditionInterface::conditions().
    */
@@ -1484,7 +1484,7 @@ class MergeQuery extends Query implements QueryConditionInterface {
     $this->condition->notExists($select);
     return $this;
   }
-  
+
   /**
    * Implements QueryConditionInterface::conditions().
    */
@@ -1689,14 +1689,14 @@ class DatabaseCondition implements QueryConditionInterface, Countable {
   public function exists(SelectQueryInterface $select) {
     return $this->condition('', $select, 'EXISTS');
   }
-  
+
   /**
    * Implements QueryConditionInterface::notExists().
    */
   public function notExists(SelectQueryInterface $select) {
     return $this->condition('', $select, 'NOT EXISTS');
   }
-  
+
   /**
    * Implements QueryConditionInterface::conditions().
    */
diff --git a/includes/database/select.inc b/includes/database/select.inc
index 53be20a..400ba04 100644
--- a/includes/database/select.inc
+++ b/includes/database/select.inc
@@ -818,7 +818,7 @@ class SelectQueryExtender implements SelectQueryInterface {
     $this->query->notExists($select);
     return $this;
   }
-  
+
   public function __toString() {
     return (string) $this->query;
   }
@@ -1040,7 +1040,7 @@ class SelectQuery extends Query implements SelectQueryInterface {
     $this->where->notExists($select);
     return $this;
   }
-  
+
   public function compile(DatabaseConnection $connection, QueryPlaceholderInterface $queryPlaceholder = NULL) {
     return $this->where->compile($connection, isset($queryPlaceholder) ? $queryPlaceholder : $this);
   }
@@ -1088,17 +1088,17 @@ class SelectQuery extends Query implements SelectQueryInterface {
     $this->having->isNotNull($field);
     return $this;
   }
-  
+
   public function havingExists(SelectQueryInterface $select) {
     $this->having->exists($select);
     return $this;
   }
-  
+
   public function havingNotExists(SelectQueryInterface $select) {
     $this->having->notExists($select);
     return $this;
   }
-  
+
   public function forUpdate($set = TRUE) {
     if (isset($set)) {
       $this->forUpdate = $set;
diff --git a/includes/database/sqlite/database.inc b/includes/database/sqlite/database.inc
index cf3b955..6164d21 100644
--- a/includes/database/sqlite/database.inc
+++ b/includes/database/sqlite/database.inc
@@ -37,7 +37,7 @@ class DatabaseConnection_sqlite extends DatabaseConnection {
   /**
    * All databases attached to the current database. This is used to allow
    * prefixes to be safely handled without locking the table
-   * 
+   *
    * @var array
    */
   protected $attachedDatabases = array();
@@ -46,10 +46,10 @@ class DatabaseConnection_sqlite extends DatabaseConnection {
    * Whether or not a table has been dropped this request: the destructor will
    * only try to get rid of unnecessary databases if there is potential of them
    * being empty.
-   * 
+   *
    * This variable is set to public because DatabaseSchema_sqlite needs to
    * access it. However, it should not be manually set.
-   * 
+   *
    * @var boolean
    */
   var $tableDropped = FALSE;
@@ -350,7 +350,7 @@ class DatabaseConnection_sqlite extends DatabaseConnection {
     }
 
     // Commit everything since SAVEPOINT $name.
-    while($savepoint = array_pop($this->transactionLayers)) {
+    while ($savepoint = array_pop($this->transactionLayers)) {
       if ($savepoint != $name) continue;
 
       // If there are no more layers left then we should commit or rollback.