Correct help documentation for legacy upgrade.

-/php/help.php

@@ -1006,7 +1006,7 @@ private function legacy_overview() {
 				<li>%s</li>
 				<li>%s</li>
 			</ol>',
-			sprintf( __( "The Upgrade Webcomic tool attempts to automatically convert your existing Webcomic %1$s data to Webcomic %2$s. Depending on the size of your site the upgrade may require multiple steps. If you do not want to upgrade click <strong>Not Interested</strong> to uninstall Webcomic %2$s. If you're upgrading to Webcomic 4 from Webcomic 1, 2, or 3 please read the following carefully:", 'webcomic' ), self::$config[ 'legacy' ], self::$version ),
+			sprintf( __( 'The Upgrade Webcomic tool attempts to automatically convert your existing Webcomic %1$s data to Webcomic %2$s. Depending on the size of your site the upgrade may require multiple steps. If you do not want to upgrade click <strong>Not Interested</strong> to uninstall Webcomic %2$s. If you\'re upgrading to Webcomic 4 from Webcomic 1, 2, or 3 please read the following carefully:', 'webcomic' ), self::$config[ 'legacy' ], self::$version ),
 			sprintf( __( 'Upgrades are not reversible and, once begun, should not be stopped. You should <a href="%1$s">backup your site</a> before starting the <em>irreversible</em>, <em>unstoppable</em> upgrade, or click <strong>Not Interested</strong> to uninstall Webcomic %2$s.', 'webcomic' ), esc_url( admin_url( 'export.php' ) ), self::$version ),
 			sprintf( __( 'Webcomic %s uses <a href="%1$s" target="_blank">the WordPress Media Library</a> for file management. All of your existing webcomic files must be imported into the media library during the upgrade. Existing files will not be moved or deleted; they will be <strong>copied</strong> into the media library.', 'webcomic' ), 'http://codex.wordpress.org/Media_Library_Screen' ),
 			sprintf( __( "The permalink URL's to your webcomics may change after upgrading. Permalinks <a href='%s' target=''>may be customized</a> for each of your collections once the upgrade is complete.", 'webcomic' ), '//github.com/mgsisk/webcomic/wiki/Permalink-Settings' ),