diff --git a/yama/src/bin/yama.rs b/yama/src/bin/yama.rs
index 8564f34..1d707dc 100644
--- a/yama/src/bin/yama.rs
+++ b/yama/src/bin/yama.rs
@@ -140,7 +140,7 @@ fn wrapped_main() -> anyhow::Result<i32> {
             let mut node_to_extract = &mut root_tree_node.node;
 
             if let Some(subset) = subset {
-                for path_to_descend in subset.split('/').filter(|s| ! s.is_empty()) {
+                for path_to_descend in subset.split('/').filter(|s| !s.is_empty()) {
                     match node_to_extract.child(path_to_descend) {
                         Ok(new_node) => {
                             node_to_extract = new_node;
diff --git a/yama/src/definitions.rs b/yama/src/definitions.rs
index 29ea33e..8c2e0e4 100644
--- a/yama/src/definitions.rs
+++ b/yama/src/definitions.rs
@@ -274,25 +274,13 @@ impl TreeNode {
     /// Recurses into a child by name, or returns Err with a reason.
     pub fn child(&mut self, name: &str) -> Result<&mut TreeNode, &'static str> {
         match self {
-            TreeNode::NormalFile { .. } => {
-                Err("not a directory: normal file")
-            }
-            TreeNode::Directory { children, .. } => {
-                match children.get_mut(name) {
-                    None => {
-                        Err("child not in directory")
-                    }
-                    Some(node) => {
-                        Ok(node)
-                    }
-                }
-            }
-            TreeNode::SymbolicLink { .. } => {
-                Err("not a directory: symlink")
-            }
-            TreeNode::Deleted => {
-                Err("not a directory: deleted")
-            }
+            TreeNode::NormalFile { .. } => Err("not a directory: normal file"),
+            TreeNode::Directory { children, .. } => match children.get_mut(name) {
+                None => Err("child not in directory"),
+                Some(node) => Ok(node),
+            },
+            TreeNode::SymbolicLink { .. } => Err("not a directory: symlink"),
+            TreeNode::Deleted => Err("not a directory: deleted"),
         }
     }
 }