diff --git a/src/Symfony/Component/Intl/DateFormatter/DateFormat/TimeZoneTransformer.php b/src/Symfony/Component/Intl/DateFormatter/DateFormat/TimeZoneTransformer.php
index 6f9c0d5a02bb5..7695a627a6856 100644
--- a/src/Symfony/Component/Intl/DateFormatter/DateFormat/TimeZoneTransformer.php
+++ b/src/Symfony/Component/Intl/DateFormatter/DateFormat/TimeZoneTransformer.php
@@ -94,6 +94,6 @@ public static function getEtcTimeZoneId($formattedTimeZone)
             return 'Etc/GMT'.($hours !== 0 ? $signal.$hours : '');
         }
 
-        throw new \InvalidArgumentException('The GMT time zone \'%s\' does not match with the supported formats GMT[+-]HH:MM or GMT[+-]HHMM.');
+        throw new \InvalidArgumentException(sprintf("The GMT time zone '%s' does not match with the supported formats GMT[+-]HH:MM or GMT[+-]HHMM.", $formattedTimeZone));
     }
 }
diff --git a/src/Symfony/Component/Process/Process.php b/src/Symfony/Component/Process/Process.php
index 23d561662ebae..96a93343f1d5d 100644
--- a/src/Symfony/Component/Process/Process.php
+++ b/src/Symfony/Component/Process/Process.php
@@ -162,7 +162,6 @@ public function __construct($commandline, $cwd = null, array $env = null, $input
         $this->setTimeout($timeout);
         $this->useFileHandles = '\\' === DIRECTORY_SEPARATOR;
         $this->pty = false;
-        $this->enhanceWindowsCompatibility = true;
         $this->enhanceSigchildCompatibility = '\\' !== DIRECTORY_SEPARATOR && $this->isSigchildEnabled();
         $this->options = array_replace(array('suppress_errors' => true, 'binary_pipes' => true), $options);
     }
diff --git a/src/Symfony/Component/Security/Http/Firewall/DigestAuthenticationListener.php b/src/Symfony/Component/Security/Http/Firewall/DigestAuthenticationListener.php
index 702cf335954f6..d89111f6aeabb 100644
--- a/src/Symfony/Component/Security/Http/Firewall/DigestAuthenticationListener.php
+++ b/src/Symfony/Component/Security/Http/Firewall/DigestAuthenticationListener.php
@@ -206,7 +206,7 @@ public function calculateServerDigest($password, $httpMethod)
         } elseif ('auth' === $this->elements['qop']) {
             $digest .= ':'.$this->elements['nc'].':'.$this->elements['cnonce'].':'.$this->elements['qop'];
         } else {
-            throw new \InvalidArgumentException('This method does not support a qop: "%s".', $this->elements['qop']);
+            throw new \InvalidArgumentException(sprintf('This method does not support a qop: "%s".', $this->elements['qop']));
         }
         $digest .= ':'.$a2Md5;
 
diff --git a/src/Symfony/Component/Translation/Catalogue/AbstractOperation.php b/src/Symfony/Component/Translation/Catalogue/AbstractOperation.php
index 062056b7317c4..c0ca6bb9b47aa 100644
--- a/src/Symfony/Component/Translation/Catalogue/AbstractOperation.php
+++ b/src/Symfony/Component/Translation/Catalogue/AbstractOperation.php
@@ -61,7 +61,6 @@ public function __construct(MessageCatalogueInterface $source, MessageCatalogueI
         $this->source = $source;
         $this->target = $target;
         $this->result = new MessageCatalogue($source->getLocale());
-        $this->domains = null;
         $this->messages = array();
     }