fix: fix beginning whitespace error

Author: cardoeng

git/diff.py

@@ -695,7 +695,7 @@ def _handle_diff_line(lines_bytes: bytes, repo: "Repo", index: DiffIndex["Diff"]
             change_type: Lit_change_type = cast(Lit_change_type, _change_type[0])
             score_str = "".join(_change_type[1:])
             score = int(score_str) if score_str.isdigit() else None
-            path = path.strip()
+            path = path.strip("\n")
             a_path = path.encode(defenc)
             b_path = path.encode(defenc)
             deleted_file = False