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-rw-r--r--rust/proc-macro2/wrapper.rs2
1 files changed, 2 insertions, 0 deletions
diff --git a/rust/proc-macro2/wrapper.rs b/rust/proc-macro2/wrapper.rs
index 2e3eb5b4d04e..6792e9834111 100644
--- a/rust/proc-macro2/wrapper.rs
+++ b/rust/proc-macro2/wrapper.rs
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
use crate::detection::inside_proc_macro;
use crate::fallback::{self, FromStr2 as _};
#[cfg(span_locations)]