patch gtest to get rid of compiler warning

3rdparty/common/gtest/gtest-1.10.0/googletest/src/gtest-death-test.cc

@@ -1288,7 +1288,7 @@ static void StackLowerThanAddress(const void* ptr,
 // making comparison result unpredictable.
 GTEST_ATTRIBUTE_NO_SANITIZE_HWADDRESS_
 static void StackLowerThanAddress(const void* ptr, bool* result) {
-  int dummy;
+    int dummy;
   *result = (&dummy < ptr);
 }
 
@@ -1296,7 +1296,7 @@ static void StackLowerThanAddress(const void* ptr, bool* result) {
 GTEST_ATTRIBUTE_NO_SANITIZE_ADDRESS_
 GTEST_ATTRIBUTE_NO_SANITIZE_HWADDRESS_
 static bool StackGrowsDown() {
-  int dummy;
+    int dummy{0};
   bool result;
   StackLowerThanAddress(&dummy, &result);
   return result;