T13: a label built from a path shows control characters as their pictures, so a name with a newline no longer aborts gpui's line shaping in Files or the session row; on macOS a name meets Git's mark in composed form, as git writes it; the rev-parse prefix keeps its own newlines

Cargo.lock

@@ -1771,6 +1771,7 @@ dependencies = [
  "serde_json",
  "serde_path_to_error",
  "signal-hook",
+ "unicode-normalization",
 ]
 
 [[package]]