little housekeeping

Author: wumpz

src/main/javacc/net/sf/jsqlparser/parser/JSqlParserCC.jj

@@ -322,12 +322,12 @@ Update Update():
           ("," table=TableWithAlias() { tables.add(table); } )*
     <K_SET> 
     (
-	tableColumn=Column() "=" value=SimpleExpression() { columns.add(tableColumn); expList.add(value); }
+	LOOKAHEAD(3) tableColumn=Column() "=" value=SimpleExpression() { columns.add(tableColumn); expList.add(value); }
 		("," tableColumn=Column() "=" value=SimpleExpression() { columns.add(tableColumn); expList.add(value); } )*
 
 	|
 
-	[LOOKAHEAD(2) "(" { useColumnsBrackets = true; }] tableColumn=Column() { columns.add(tableColumn); } ("," tableColumn=Column() { columns.add(tableColumn); } )* [ ")" ] "="
+	["(" { useColumnsBrackets = true; }] tableColumn=Column() { columns.add(tableColumn); } ("," tableColumn=Column() { columns.add(tableColumn); } )* [ ")" ] "="
 		"("
 		(
 			{ update.setUseSelect(true); }