Update clang version for Rust bindgen to clang-r487747c

Test: presubmit
Bug: 279955553
(cherry picked from https://android-review.googlesource.com/q/commit:6974c7ec725a948a56cd8e83bff4a2cc9cf909e3)
Merged-In: I9092263024b5b8dc7a1538b00f318ef0d5c29bb7
Change-Id: I9092263024b5b8dc7a1538b00f318ef0d5c29bb7
diff --git a/rust/bindgen.go b/rust/bindgen.go
index 13fa81e..96645b0 100644
--- a/rust/bindgen.go
+++ b/rust/bindgen.go
@@ -29,7 +29,7 @@
 	defaultBindgenFlags = []string{""}
 
 	// bindgen should specify its own Clang revision so updating Clang isn't potentially blocked on bindgen failures.
-	bindgenClangVersion = "clang-r487747"
+	bindgenClangVersion = "clang-r487747c"
 
 	_ = pctx.VariableFunc("bindgenClangVersion", func(ctx android.PackageVarContext) string {
 		if override := ctx.Config().Getenv("LLVM_BINDGEN_PREBUILTS_VERSION"); override != "" {