From 449f00b51d4cbb548b8c6503c88127fbe3c0bd77 Mon Sep 17 00:00:00 2001
From: Nikita Karetnikov <nikita@karetnikov.org>
Date: Wed, 7 Nov 2018 16:31:59 +0300
Subject: [PATCH 1/3] Remove an extra space character

---
 src/macros/dry.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/macros/dry.md b/src/macros/dry.md
index 6e765e8469..d3dc2f5871 100644
--- a/src/macros/dry.md
+++ b/src/macros/dry.md
@@ -10,7 +10,7 @@ use std::ops::{Add, Mul, Sub};
 macro_rules! assert_equal_len {
     // The `tt` (token tree) designator is used for
     // operators and tokens.
-    ($a:ident, $b: ident, $func:ident, $op:tt) => (
+    ($a:ident, $b:ident, $func:ident, $op:tt) => (
         assert!($a.len() == $b.len(),
                 "{:?}: dimension mismatch: {:?} {:?} {:?}",
                 stringify!($func),
@@ -41,7 +41,7 @@ op!(sub_assign, Sub, -=, sub);
 mod test {
     use std::iter;
     macro_rules! test {
-        ($func: ident, $x:expr, $y:expr, $z:expr) => {
+        ($func:ident, $x:expr, $y:expr, $z:expr) => {
             #[test]
             fn $func() {
                 for size in 0usize..10 {

From bb6fb9ebd728a42c605b8164846eb41321e0e6f5 Mon Sep 17 00:00:00 2001
From: Nikita Karetnikov <nikita@karetnikov.org>
Date: Wed, 7 Nov 2018 16:57:54 +0300
Subject: [PATCH 2/3] Reformat the comment to match the rest of the file

---
 src/macros/dry.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/macros/dry.md b/src/macros/dry.md
index d3dc2f5871..ffa8250687 100644
--- a/src/macros/dry.md
+++ b/src/macros/dry.md
@@ -57,7 +57,7 @@ mod test {
         }
     }
 
-    // Test `add_assign`, `mul_assign` and `sub_assign`
+    // Test `add_assign`, `mul_assign`, and `sub_assign`.
     test!(add_assign, 1u32, 2u32, 3u32);
     test!(mul_assign, 2u32, 3u32, 6u32);
     test!(sub_assign, 3u32, 2u32, 1u32);

From 81739b4709cda6b699ffc8330962c88cac8c416b Mon Sep 17 00:00:00 2001
From: Nikita Karetnikov <nikita@karetnikov.org>
Date: Thu, 8 Nov 2018 14:21:39 +0300
Subject: [PATCH 3/3] Add a comment about curly braces

---
 src/macros/dsl.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/macros/dsl.md b/src/macros/dsl.md
index 1182b97cc7..de28910cd0 100644
--- a/src/macros/dsl.md
+++ b/src/macros/dsl.md
@@ -39,3 +39,6 @@ Output:
 This was a very simple example, but much more complex interfaces have been
 developed, such as [`lazy_static`](https://crates.io/crates/lazy_static) or
 [`clap`](https://crates.io/crates/clap).
+
+Also, note the two pairs of braces in the macro. The outer ones are
+part of the syntax of `macro_rules!`, in addition to `()` or `[]`.