Fixed aesthetics of if let block

Author: su225

src/librustc/hir/lowering.rs

@@ -2051,10 +2051,10 @@ impl<'a> LoweringContext<'a> {
                     let wildcard_arm: Option<&Expr> = else_opt.as_ref().map(|p| &**p);
                     let wildcard_pattern = self.pat_wild(e.span);
                     let body = if let Some(else_expr) = wildcard_arm {
-                                   P(self.lower_expr(else_expr))
-                               } else {
-                                   self.expr_tuple(e.span, hir_vec![])
-                               };
+                       P(self.lower_expr(else_expr))
+                    } else {
+                       self.expr_tuple(e.span, hir_vec![])
+                    };
                     arms.push(self.arm(hir_vec![wildcard_pattern], body));
                 }