String comparison is failing

## Description

CHECK(copy == date) will fail with following output:

/.../DateTest.cpp:69: FAILED:
CHECK( copy == date )
with expansion:
"11/02/01" == "11/02/01"

### Steps to reproduce

const char * date = "11/02/01";
char copy[9];

for (auto i = 0; i<9; i++)
copy[i] = date[i];

CHECK(copy == date);

* Catch version: **1.10.0**
* Operating System: **OSX 10.12.6**
* Compiler+version: **XCode 9.0**