diff -r c7c34916027a -r 177826044cd9 wp/wp-includes/pomo/entry.php
--- a/wp/wp-includes/pomo/entry.php	Mon Oct 14 18:06:33 2019 +0200
+++ b/wp/wp-includes/pomo/entry.php	Mon Oct 14 18:28:13 2019 +0200
@@ -7,87 +7,97 @@
  * @subpackage entry
  */
 
-if ( ! class_exists( 'Translation_Entry', false ) ):
-/**
- * Translation_Entry class encapsulates a translatable string
- */
-class Translation_Entry {
-
+if ( ! class_exists( 'Translation_Entry', false ) ) :
 	/**
-	 * Whether the entry contains a string and its plural form, default is false
-	 *
-	 * @var boolean
-	 */
-	var $is_plural = false;
-
-	var $context = null;
-	var $singular = null;
-	var $plural = null;
-	var $translations = array();
-	var $translator_comments = '';
-	var $extracted_comments = '';
-	var $references = array();
-	var $flags = array();
-
-	/**
-	 * @param array $args associative array, support following keys:
-	 * 	- singular (string) -- the string to translate, if omitted and empty entry will be created
-	 * 	- plural (string) -- the plural form of the string, setting this will set {@link $is_plural} to true
-	 * 	- translations (array) -- translations of the string and possibly -- its plural forms
-	 * 	- context (string) -- a string differentiating two equal strings used in different contexts
-	 * 	- translator_comments (string) -- comments left by translators
-	 * 	- extracted_comments (string) -- comments left by developers
-	 * 	- references (array) -- places in the code this strings is used, in relative_to_root_path/file.php:linenum form
-	 * 	- flags (array) -- flags like php-format
+	 * Translation_Entry class encapsulates a translatable string
 	 */
-	function __construct( $args = array() ) {
-		// if no singular -- empty object
-		if (!isset($args['singular'])) {
-			return;
-		}
-		// get member variable values from args hash
-		foreach ($args as $varname => $value) {
-			$this->$varname = $value;
-		}
-		if (isset($args['plural']) && $args['plural']) $this->is_plural = true;
-		if (!is_array($this->translations)) $this->translations = array();
-		if (!is_array($this->references)) $this->references = array();
-		if (!is_array($this->flags)) $this->flags = array();
-	}
+	class Translation_Entry {
+
+		/**
+		 * Whether the entry contains a string and its plural form, default is false
+		 *
+		 * @var boolean
+		 */
+		var $is_plural = false;
 
-	/**
-	 * PHP4 constructor.
-	 */
-	public function Translation_Entry( $args = array() ) {
-		self::__construct( $args );
-	}
+		var $context             = null;
+		var $singular            = null;
+		var $plural              = null;
+		var $translations        = array();
+		var $translator_comments = '';
+		var $extracted_comments  = '';
+		var $references          = array();
+		var $flags               = array();
 
-	/**
-	 * Generates a unique key for this entry
-	 *
-	 * @return string|bool the key or false if the entry is empty
-	 */
-	function key() {
-		if ( null === $this->singular || '' === $this->singular ) return false;
-
-		// Prepend context and EOT, like in MO files
-		$key = !$this->context? $this->singular : $this->context.chr(4).$this->singular;
-		// Standardize on \n line endings
-		$key = str_replace( array( "\r\n", "\r" ), "\n", $key );
-
-		return $key;
-	}
-
-	/**
-	 * @param object $other
-	 */
-	function merge_with(&$other) {
-		$this->flags = array_unique( array_merge( $this->flags, $other->flags ) );
-		$this->references = array_unique( array_merge( $this->references, $other->references ) );
-		if ( $this->extracted_comments != $other->extracted_comments ) {
-			$this->extracted_comments .= $other->extracted_comments;
+		/**
+		 * @param array $args associative array, support following keys:
+		 *  - singular (string) -- the string to translate, if omitted and empty entry will be created
+		 *  - plural (string) -- the plural form of the string, setting this will set {@link $is_plural} to true
+		 *  - translations (array) -- translations of the string and possibly -- its plural forms
+		 *  - context (string) -- a string differentiating two equal strings used in different contexts
+		 *  - translator_comments (string) -- comments left by translators
+		 *  - extracted_comments (string) -- comments left by developers
+		 *  - references (array) -- places in the code this strings is used, in relative_to_root_path/file.php:linenum form
+		 *  - flags (array) -- flags like php-format
+		 */
+		function __construct( $args = array() ) {
+			// if no singular -- empty object
+			if ( ! isset( $args['singular'] ) ) {
+				return;
+			}
+			// get member variable values from args hash
+			foreach ( $args as $varname => $value ) {
+				$this->$varname = $value;
+			}
+			if ( isset( $args['plural'] ) && $args['plural'] ) {
+				$this->is_plural = true;
+			}
+			if ( ! is_array( $this->translations ) ) {
+				$this->translations = array();
+			}
+			if ( ! is_array( $this->references ) ) {
+				$this->references = array();
+			}
+			if ( ! is_array( $this->flags ) ) {
+				$this->flags = array();
+			}
 		}
 
+		/**
+		 * PHP4 constructor.
+		 */
+		public function Translation_Entry( $args = array() ) {
+			self::__construct( $args );
+		}
+
+		/**
+		 * Generates a unique key for this entry
+		 *
+		 * @return string|bool the key or false if the entry is empty
+		 */
+		function key() {
+			if ( null === $this->singular || '' === $this->singular ) {
+				return false;
+			}
+
+			// Prepend context and EOT, like in MO files
+			$key = ! $this->context ? $this->singular : $this->context . "\4" . $this->singular;
+			// Standardize on \n line endings
+			$key = str_replace( array( "\r\n", "\r" ), "\n", $key );
+
+			return $key;
+		}
+
+		/**
+		 * @param object $other
+		 */
+		function merge_with( &$other ) {
+			$this->flags      = array_unique( array_merge( $this->flags, $other->flags ) );
+			$this->references = array_unique( array_merge( $this->references, $other->references ) );
+			if ( $this->extracted_comments != $other->extracted_comments ) {
+				$this->extracted_comments .= $other->extracted_comments;
+			}
+
+		}
 	}
-}
-endif;
\ No newline at end of file
+endif;