MDL-87338 core_table: avoid string concatenation.

public/lang/en/moodle.php

@@ -1040,6 +1040,7 @@ $string['hidesection'] = 'Hide section {$a}';
 $string['hidesettings'] = 'Hide settings';
 $string['hideshowblocks'] = 'Hide or show blocks';
 $string['hidepopoverwindow'] = 'Hide popover window';
+$string['hidex'] = 'Hide {$a}';
 $string['highlight'] = 'Highlight';
 $string['highlighted'] = 'Highlighted';
 $string['highlightoff'] = 'Unhighlight';
@@ -2067,6 +2068,7 @@ $string['showreports_help'] = 'Allow students to view their own activity reports
 $string['showsettings'] = 'Show settings';
 $string['showtheselogs'] = 'Show these logs';
 $string['showthishelpinlanguage'] = 'Show this help in language: {$a}';
+$string['showx'] = 'Show {$a}';
 $string['schedule'] = 'Schedule';
 $string['sidepanel'] = 'Side panel';
 $string['signoutofotherservices'] = 'Log out of all web apps';

public/lib/table/classes/flexible_table.php

@@ -1247,7 +1247,7 @@ class flexible_table {
 
         if (!empty($this->prefs['collapse'][$column])) {
             $linkattributes = [
-                'title' => get_string('show') . ' ' . strip_tags($this->headers[$index]),
+                'title' => get_string('showx', 'core', strip_tags($this->headers[$index])),
                 'aria-expanded' => 'false',
                 'aria-controls' => $ariacontrols,
                 'data-action' => 'show',
@@ -1261,7 +1261,7 @@ class flexible_table {
             );
         } else if ($this->headers[$index] !== null) {
             $linkattributes = [
-                'title' => get_string('hide') . ' ' . strip_tags($this->headers[$index]),
+                'title' => get_string('hidex', 'core', strip_tags($this->headers[$index])),
                 'aria-expanded' => 'true',
                 'aria-controls' => $ariacontrols,
                 'data-action' => 'hide',