sysutils: Add dump() to NetlinkEvent

Signed-off-by: San Mehat <san@google.com>
diff --git a/include/sysutils/NetlinkEvent.h b/include/sysutils/NetlinkEvent.h
index 95e83a3..b329b09 100644
--- a/include/sysutils/NetlinkEvent.h
+++ b/include/sysutils/NetlinkEvent.h
@@ -39,6 +39,8 @@
 
     const char *getSubsystem() { return mSubsystem; }
     int getAction() { return mAction; }
+
+    void dump();
 };
 
 #endif