Fixed memory leak, which prevents tests to pass with address sanitizing.
Fixed memory leak, which prevents tests to pass with address sanitizing.

- Fixed: tests memory leak detected by `-fsanitize=address` GCC option.

martinmoene/gsl-lite,martinmoene/gsl-lite,decaf-emu/gsl-lite,martinmoene/gsl-lite,decaf-emu/gsl-lite