Fix syntax of patch file.

Bug: http://b/339424309
Test: treehugger
Change-Id: Ib8d2dc7eab2a5644fdaf2e28e02e5089b1542cf2
diff --git a/patches/hardcode_prefix.patch b/patches/hardcode_prefix.patch
index 41d00ec..3fd7c16 100644
--- a/patches/hardcode_prefix.patch
+++ b/patches/hardcode_prefix.patch
@@ -1,5 +1,5 @@
---- src/prefixed.rs.orig	2023-11-21 14:54:21.563997351 +0000
-+++ src/prefixed.rs	2023-11-21 14:48:18.346428666 +0000
+--- a/src/prefixed.rs	2023-11-21 14:54:21.563997351 +0000
++++ b/src/prefixed.rs	2023-11-21 14:48:18.346428666 +0000
 @@ -73,6 +73,7 @@
      };
  }