[PSR] Fixed library source

- Using `php-cs-fixer` tool.

lib/PayPal/Log/PayPalDefaultLogFactory.php

@@ -23,4 +23,4 @@ class PayPalDefaultLogFactory implements PayPalLogFactory
     {
         return new PayPalLogger($className);
     }
-}
+}

lib/PayPal/Log/PayPalLogFactory.php

@@ -13,5 +13,4 @@ interface PayPalLogFactory
      * @return LoggerInterface instance of logger object implementing LoggerInterface
      */
     public function getLogger($className);
-
-}
+}

lib/PayPal/Log/PayPalLogger.php

@@ -6,7 +6,6 @@ use PayPal\Core\PayPalConfigManager;
 use Psr\Log\AbstractLogger;
 use Psr\Log\LogLevel;
 
-
 class PayPalLogger extends AbstractLogger
 {
 
@@ -75,11 +74,11 @@ class PayPalLogger extends AbstractLogger
 
     public function log($level, $message, array $context = array())
     {
-        if($this->isLoggingEnabled) {
+        if ($this->isLoggingEnabled) {
             // Checks if the message is at level below configured logging level
             if (array_search($level, $this->loggingLevels) <= array_search($this->loggingLevel, $this->loggingLevels)) {
                 error_log("[" . date('d-m-Y h:i:s') . "] " . $this->loggerName . " : " . strtoupper($level) . ": $message\n", 3, $this->loggerFile);
             }
         }
     }
-}
+}