fix line format

Author: ljedrz

clippy_lints/src/loops.rs

@@ -2218,7 +2218,8 @@ fn is_conditional(expr: &Expr) -> bool {
 fn is_nested(cx: &LateContext<'_, '_>, match_expr: &Expr, iter_expr: &Expr) -> bool {
     if_chain! {
         if let Some(loop_block) = get_enclosing_block(cx, match_expr.hir_id);
-        if let Some(Node::Expr(loop_expr)) = cx.tcx.hir().find_by_hir_id(cx.tcx.hir().get_parent_node_by_hir_id(loop_block.hir_id));
+        let parent_node = cx.tcx.hir().get_parent_node_by_hir_id(loop_block.hir_id);
+        if let Some(Node::Expr(loop_expr)) = cx.tcx.hir().find_by_hir_id(parent_node);
         then {
             return is_loop_nested(cx, loop_expr, iter_expr)
         }