Shortcode JS: Avoid errors when an escaped shortcode includes a newline between brackets.

props gcorne.
props Clorith, jorbin for tests.
see #27907, for trunk.


git-svn-id: https://develop.svn.wordpress.org/trunk@28223 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/js/shortcode.js

@@ -37,13 +37,13 @@ window.wp = window.wp || {};
 			// If we matched a leading `[`, strip it from the match
 			// and increment the index accordingly.
 			if ( match[1] ) {
-				result.match = result.match.slice( 1 );
+				result.content = result.content.slice( 1 );
 				result.index++;
 			}
 
 			// If we matched a trailing `]`, strip it from the match.
 			if ( match[7] ) {
-				result.match = result.match.slice( 0, -1 );
+				result.content = result.content.slice( 0, -1 );
 			}
 
 			return result;
@@ -353,4 +353,4 @@ window.wp = window.wp || {};
 			return text + '</' + options.tag + '>';
 		}
 	});
-}());
+}());