Reformat the source code

parity/cli/usage.rs

@@ -15,17 +15,24 @@
 // along with Parity Ethereum.  If not, see <http://www.gnu.org/licenses/>.
 
 macro_rules! return_if_parse_error {
-	($e:expr) => (
-		match $e {
-			Err(clap_error @ ClapError { kind: ClapErrorKind::ValueValidation, .. }) => {
-				return Err(clap_error);
-			},
+    ($e:expr) => {
+        match $e {
+            Err(
+                clap_error
+                @
+                ClapError {
+                    kind: ClapErrorKind::ValueValidation,
+                    ..
+                },
+            ) => {
+                return Err(clap_error);
+            }
 
-			// Otherwise, if $e is ClapErrorKind::ArgumentNotFound or Ok(),
-			// then convert to Option
-			_ => $e.ok()
-		}
-	)
+            // Otherwise, if $e is ClapErrorKind::ArgumentNotFound or Ok(),
+            // then convert to Option
+            _ => $e.ok(),
+        }
+    };
 }
 
 macro_rules! if_option {
@@ -47,46 +54,46 @@ macro_rules! if_vec {
 }
 
 macro_rules! if_option_vec {
-	(Option<Vec<String>>, THEN {$then:expr} ELSE {$otherwise:expr}) => (
-		$then
-	);
-	(Option<$type:ty>, THEN {$then:expr} ELSE {$otherwise:expr}) => (
-		$otherwise
-	);
+    (Option<Vec<String>>, THEN {$then:expr} ELSE {$otherwise:expr}) => {
+        $then
+    };
+    (Option<$type:ty>, THEN {$then:expr} ELSE {$otherwise:expr}) => {
+        $otherwise
+    };
 }
 
 macro_rules! inner_option_type {
-	(Option<$type:ty>) => (
-		$type
-	)
+    (Option<$type:ty>) => {
+        $type
+    };
 }
 
 macro_rules! inner_vec_type {
-	(Vec<$type:ty>) => (
-		$type
-	)
+    (Vec<$type:ty>) => {
+        $type
+    };
 }
 
 macro_rules! inner_option_vec_type {
-	(Option<Vec<String>>) => (
-		String
-	)
+    (Option<Vec<String>>) => {
+        String
+    };
 }
 
 macro_rules! usage_with_ident {
-	($name:expr, $usage:expr, $help:expr) => (
-		if $usage.contains("<") {
-			format!("<{}> {} '{}'",$name, $usage, $help)
-		} else {
-			format!("[{}] {} '{}'",$name, $usage, $help)
-		}
-	);
+    ($name:expr, $usage:expr, $help:expr) => {
+        if $usage.contains("<") {
+            format!("<{}> {} '{}'", $name, $usage, $help)
+        } else {
+            format!("[{}] {} '{}'", $name, $usage, $help)
+        }
+    };
 }
 
 macro_rules! underscore_to_hyphen {
-	($e:expr) => (
-		str::replace($e, "_", "-")
-	)
+    ($e:expr) => {
+        str::replace($e, "_", "-")
+    };
 }
 
 macro_rules! usage {