Use backward-compatible macro syntax.

Author: SimonSapin

src/parser.rs

@@ -106,13 +106,13 @@ pub fn parse_one_component_value<T: Iterator<Node>>(mut iter: T)
 
 // Work around "error: cannot borrow `*iter` as mutable more than once at a time"
 // when using a normal for loop.
-macro_rules! for_iter(
+macro_rules! for_iter {
     ($iter: ident, $pattern: pat, $loop_body: expr) => (
         loop {
             match $iter.next() { None => break, Some($pattern) => $loop_body }
         }
     );
-);
+}
 
 
 impl<T: Iterator<Node>> Iterator<Result<Rule, SyntaxError>> for StylesheetParser<T> {

src/tokenizer.rs

@@ -123,11 +123,11 @@ impl Tokenizer {
     }
 }
 
-macro_rules! is_match(
+macro_rules! is_match {
     ($value:expr, $($pattern:pat)|+) => (
         match $value { $($pattern)|+ => true, _ => false }
     );
-);
+}
 
 
 fn next_component_value(tokenizer: &mut Tokenizer) -> Option<Node> {