GitLab

For MSVC, gmock_output_test.py output struct std::pair<int,bool>, for GCC, it's output
std::pair<int, bool>, it's not the same, my intention is getting these to be same by removing
struct  for MSVC's outptu, and strip redundant space for GCC.

As a by-product,
```
#ifdef _MSC_VER
#define ERROR_DESC "class std::runtime_error"
#else
#define ERROR_DESC "std::runtime_error"
#endif
```
can be simplified to

```
#define ERROR_DESC "std::runtime_error"
```
Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>