TEST_MAPPING: fix TODO syntax

These two TODO tags were improperly formatted, which means automation
will not alert anyone if the ticket is closed.

Bug: 327420679
Test: git diff
Change-Id: I99c8215fe3e24cdf3fa7be517291964cc5eb1ecf
Signed-off-by: Lucas Henneman <henneman@google.com>
diff --git a/tools/aconfig/TEST_MAPPING b/tools/aconfig/TEST_MAPPING
index 0ea8fea..7651dba 100644
--- a/tools/aconfig/TEST_MAPPING
+++ b/tools/aconfig/TEST_MAPPING
@@ -20,7 +20,7 @@
       // aconfig C++ integration tests (test mode auto-generated code)
       "name": "aconfig.test.cpp.test_mode"
     },
-    // TODO(327420679): Enable export mode for native flag library
+    // TODO(b/327420679): Enable export mode for native flag library
     // {
     //   // aconfig C++ integration tests (exported mode auto-generated code)
     //   "name": "aconfig.test.cpp.exported_mode"
@@ -33,7 +33,7 @@
       // aconfig Rust integration tests (test mode auto-generated code)
       "name": "aconfig.test_mode.test.rust"
     },
-    // TODO(327420679): Enable export mode for native flag library
+    // TODO(b/327420679): Enable export mode for native flag library
     // {
     //   // aconfig Rust integration tests (exported mode auto-generated code)
     //   "name": "aconfig.exported_mode.test.rust"