Make sandbox/linux/seccomp-bpf/ follow the style guide.

sandbox/linux/tests/main.cc

Index: sandbox/linux/tests/main.cc
diff --git a/sandbox/linux/tests/main.cc b/sandbox/linux/tests/main.cc
index 754b310dc4326cf8b8d4bed8c18c641f09f73ec1..8fd85d93491d2407809db574fb44c9ed2a1d3402 100644
--- a/sandbox/linux/tests/main.cc
+++ b/sandbox/linux/tests/main.cc
@@ -5,7 +5,7 @@
 #include "base/at_exit.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
-int main(int argc, char *argv[]) {
+int main(int argc, char* argv[]) {
   // The use of Callbacks requires an AtExitManager.
   base::AtExitManager exit_manager;
   testing::InitGoogleTest(&argc, argv);