fix pointer style to match the style guide

We do this in a lot of places, but we're inconsistent.
Normalize the code to the Google C++ style guide.

Change-Id: Ic2aceab661ce8f6b993dda21b1cdf5d2198dcbbf
Reviewed-on: https://chromium-review.googlesource.com/c/breakpad/breakpad/+/2262932
Reviewed-by: Sterling Augustine <saugustine@google.com>
Reviewed-by: Mark Mentovai <mark@chromium.org>

src/processor/address_map_unittest.cc

@@ -189,7 +189,7 @@ static bool RunTests() {
 
 }  // namespace
 
-int main(int argc, char **argv) {
+int main(int argc, char** argv) {
   BPLOG_INIT(&argc, &argv);
 
   return RunTests() ? 0 : 1;