Add missing newline.
am: 3768f42dff

Change-Id: I52dbf0eae41644fa7244d5ea51063b8bd2123da7
diff --git a/Interface.cpp b/Interface.cpp
index 073e44c..fef3a3d 100644
--- a/Interface.cpp
+++ b/Interface.cpp
@@ -273,7 +273,7 @@
                 }
             });
             out << ");\n";
-            out << "return ::android::hardware::Void();";
+            out << "return ::android::hardware::Void();\n";
         } } }, /* cppImpl */
         { { IMPL_INTERFACE, [this](auto &out) {
             std::vector<const Interface *> chain = typeChain();