Index: src/wp-includes/js/tinymce/plugins/wplink/plugin.js
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
--- src/wp-includes/js/tinymce/plugins/wplink/plugin.js	(revision 46750)
+++ src/wp-includes/js/tinymce/plugins/wplink/plugin.js	(date 1574211253760)
@@ -417,11 +417,7 @@
 							noResults: ( typeof window.uiAutocompleteL10n !== 'undefined' ) ? window.uiAutocompleteL10n.noResults : '',
 							results: function( number ) {
 								if ( typeof window.uiAutocompleteL10n !== 'undefined' ) {
-									if ( number > 1 ) {
-										return window.uiAutocompleteL10n.manyResults.replace( '%d', number );
-									}
-
-									return window.uiAutocompleteL10n.oneResult;
+									return window.uiAutocompleteL10n.manyResults;
 								}
 							}
 						}
Index: src/wp-includes/script-loader.php
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
--- src/wp-includes/script-loader.php	(revision 46750)
+++ src/wp-includes/script-loader.php	(date 1574211253748)
@@ -228,8 +228,7 @@
 	did_action( 'init' ) && $scripts->localize( 'jquery-ui-autocomplete', 'uiAutocompleteL10n', array(
 		'noResults' => __( 'No search results.' ),
 		/* translators: Number of results found when using jQuery UI Autocomplete */
-		'oneResult' => __( '1 result found. Use up and down arrow keys to navigate.' ),
-		'manyResults' => __( '%d results found. Use up and down arrow keys to navigate.' ),
+		'manyResults' => _n( '%d result found. Use up and down arrow keys to navigate.', '%d results found. Use up and down arrow keys to navigate.', did_action( 'init' ) ),
 	) );
 
 	// deprecated, not used in core, most functionality is included in jQuery 1.3