[pre-commit.ci lite] apply automatic fixes

Author: pre-commit-ci-lite[bot]

Mathlib/Combinatorics/SimpleGraph/Copy.lean

@@ -526,7 +526,7 @@ lemma copyCount_eq_card_image_copyToSubgraph [Fintype (H.Copy G)]
       Nat.card_eq_fintype_card, Fintype.card_coe]
 
 @[simp] lemma copyCount_eq_zero [Finite V] : G.copyCount H = 0 ↔ H.Free G := by
-  rw [copyCount, Nat.card_eq_zero] 
+  rw [copyCount, Nat.card_eq_zero]
   constructor <;> intro h
   · obtain h1 | h2 := h
     · rw [Free, isContained_iff_exists_iso_subgraph]