Cargo-fmt fixes

cranelift/src/libcretonne/cfg.rs

@@ -40,7 +40,6 @@ pub struct ControlFlowGraph {
 }
 
 impl ControlFlowGraph {
-
     /// During initialization mappings will be generated for any existing
     /// blocks within the CFG's associated function. Basic sanity checks will
     /// also be performed to ensure that the blocks are well formed.
@@ -76,7 +75,7 @@ impl ControlFlowGraph {
                     InstructionData::Nullary { ty: _, opcode: _ } => {
                         terminated = true;
                     }
-                    _ => ()
+                    _ => (),
                 }
             }
         }
@@ -89,16 +88,19 @@ impl ControlFlowGraph {
         self.data.insert(ebb, BTreeSet::new());
         match self.data.get_mut(&ebb) {
             Some(predecessors) => Ok(predecessors),
-            None => Err("Ebb initialization failed.")
+            None => Err("Ebb initialization failed."),
         }
     }
 
     /// Attempts to add a predecessor for some ebb, attempting to initialize
     /// any ebb which has no entry.
-    pub fn add_predecessor(&mut self, ebb: Ebb, predecessor: Predecessor) -> Result<(), &'static str> {
+    pub fn add_predecessor(&mut self,
+                           ebb: Ebb,
+                           predecessor: Predecessor)
+                           -> Result<(), &'static str> {
         let success = match self.data.get_mut(&ebb) {
             Some(predecessors) => predecessors.insert(predecessor),
-            None => false
+            None => false,
         };
 
         if success {