BEGIN_PUBLIC
Fix the format of offline_wire_formats.proto
END_PUBLIC.

-- error caused by copybara-presubmit =>

```
Migration resulted in error 'PERMANENT_ERROR'
Non reversible transformations:

diff --git a/origin/google3/third_party/nearby/connections/implementation/proto/offline_wire_formats.proto b/reverse/google3/third_party/nearby/connections/implementation/proto/offline_wire_formats.proto
index de0aed4..5d4bb08 100644
--- a/origin/google3/third_party/nearby/connections/implementation/proto/offline_wire_formats.proto
+++ b/reverse/google3/third_party/nearby/connections/implementation/proto/offline_wire_formats.proto
@@ -143,7 +143,9 @@ message PayloadTransferFrame {

   // Accompanies DATA packets.
   message PayloadChunk {
-    enum Flags { LAST_CHUNK = 0x1; }
+    enum Flags {
+      LAST_CHUNK = 0x1;
+    }
     optional int32 flags = 1;
     optional int64 offset = 2;
     optional bytes body = 3;

Workflow 'presubmit_piper_to_github' is not reversible
Configuration errorErrors happened during the migration
```

PiperOrigin-RevId: 430878757
diff --git a/connections/implementation/proto/offline_wire_formats.proto b/connections/implementation/proto/offline_wire_formats.proto
index 7308ee9..8a4d176 100644
--- a/connections/implementation/proto/offline_wire_formats.proto
+++ b/connections/implementation/proto/offline_wire_formats.proto
@@ -143,7 +143,9 @@
 
   // Accompanies DATA packets.
   message PayloadChunk {
-    enum Flags { LAST_CHUNK = 0x1; }
+    enum Flags {
+      LAST_CHUNK = 0x1;
+    }
     optional int32 flags = 1;
     optional int64 offset = 2;
     optional bytes body = 3;