Remove extra single quote

src/Cache/Cache.php

@@ -484,7 +484,7 @@ class Cache {
  * Parses a DSN into a valid connection configuration
  *
  * This method allows setting a DSN using PEAR::DB formatting, with added support for drivers
- * in the SQLAlchemy format. The following is an example of it's usage:
+ * in the SQLAlchemy format. The following is an example of its usage:
  *
  * {{{
  * 	 $dsn = 'File:///';

src/Core/StaticConfigTrait.php

@@ -133,7 +133,7 @@ trait StaticConfigTrait {
  * Parses a DSN into a valid connection configuration
  *
  * This method allows setting a DSN using PEAR::DB formatting, with added support for drivers
- * in the SQLAlchemy format. The following is an example of it's usage:
+ * in the SQLAlchemy format. The following is an example of its usage:
  *
  * {{{
  * 	 $dsn = 'mysql+Cake\Database\Driver\Mysql://user:password@localhost:3306/database_name';

src/Datasource/ConnectionManager.php

@@ -70,7 +70,7 @@ class ConnectionManager {
  * Parses a DSN into a valid connection configuration
  *
  * This method allows setting a DSN using PEAR::DB formatting, with added support for drivers
- * in the SQLAlchemy format. The following is an example of it's usage:
+ * in the SQLAlchemy format. The following is an example of its usage:
  *
  * {{{
  * 	 $dsn = 'mysql+Cake\Database\Driver\Mysql://user:password@localhost:3306/database_name';

src/Log/Log.php

@@ -263,7 +263,7 @@ class Log {
  * Parses a DSN into a valid connection configuration
  *
  * This method allows setting a DSN using PEAR::DB formatting, with added support for drivers
- * in the SQLAlchemy format. The following is an example of it's usage:
+ * in the SQLAlchemy format. The following is an example of its usage:
  *
  * {{{
  * 	 $dsn = 'Cake\Log\Engine\FileLog://?types=notice,info,debug&file=debug&path=LOGS';

src/Network/Email/Email.php

@@ -1197,7 +1197,7 @@ class Email {
  * Parses a DSN into a valid connection configuration
  *
  * This method allows setting a DSN using PEAR::DB formatting, with added support for drivers
- * in the SQLAlchemy format. The following is an example of it's usage:
+ * in the SQLAlchemy format. The following is an example of its usage:
  *
  * {{{
  * 	 $dsn = 'mail://user:secret@localhost:25?timeout=30&client=null&tls=null';