General: Remove extra spaces added before checked() functions used in WP_Screen class.

This reverts [59889] as `__checked_selected_helper()` actually adds a leading space before the `checked` attribute.

Props kkmuffme.
Unprops audrasjb.
Fixes #63037.



git-svn-id: https://develop.svn.wordpress.org/trunk@59941 602fd350-edb4-49c9-b593-d223f7449a82

Author: audrasjb

src/wp-admin/includes/class-wp-screen.php

@@ -1003,7 +1003,7 @@ public function show_screen_options() {
 
 		if ( 'post' === $this->base ) {
 			$expand                 = '<fieldset class="editor-expand hidden"><legend>' . __( 'Additional settings' ) . '</legend><label for="editor-expand-toggle">';
-			$expand                .= '<input type="checkbox" id="editor-expand-toggle" ' . checked( get_user_setting( 'editor_expand', 'on' ), 'on', false ) . ' />';
+			$expand                .= '<input type="checkbox" id="editor-expand-toggle"' . checked( get_user_setting( 'editor_expand', 'on' ), 'on', false ) . ' />';
 			$expand                .= __( 'Enable full-height editor and distraction-free functionality.' ) . '</label></fieldset>';
 			$this->_screen_settings = $expand;
 		}
@@ -1134,7 +1134,7 @@ public function render_meta_boxes_preferences() {
 				}
 			}
 			echo '<label for="wp_welcome_panel-hide">';
-			echo '<input type="checkbox" id="wp_welcome_panel-hide" ' . checked( (bool) $welcome_checked, true, false ) . ' />';
+			echo '<input type="checkbox" id="wp_welcome_panel-hide"' . checked( (bool) $welcome_checked, true, false ) . ' />';
 			echo _x( 'Welcome', 'Welcome panel' ) . "</label>\n";
 		}
 		?>
@@ -1183,7 +1183,7 @@ public function render_list_table_columns_preferences() {
 
 			$id = "$column-hide";
 			echo '<label>';
-			echo '<input class="hide-column-tog" name="' . $id . '" type="checkbox" id="' . $id . '" value="' . $column . '" ' . checked( ! in_array( $column, $hidden, true ), true, false ) . ' />';
+			echo '<input class="hide-column-tog" name="' . $id . '" type="checkbox" id="' . $id . '" value="' . $column . '"' . checked( ! in_array( $column, $hidden, true ), true, false ) . ' />';
 			echo "$title</label>\n";
 		}
 		?>