Code cleanup based on Clang-Tidy.

src/base/api/Api.cpp

@@ -16,7 +16,6 @@
  *   along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-
 #include <uv.h>
 
 
@@ -198,7 +197,7 @@ void xmrig::Api::genId(const String &id)
         return;
     }
 
-    uv_interface_address_t *interfaces;
+    uv_interface_address_t *interfaces = nullptr;
     int count = 0;
 
     if (uv_interface_addresses(&interfaces, &count) < 0) {