explicit TextView()

in code/include/swoc/TextView.h [167:170]

• 4 lines of code
• 3 McCabe index (conditional complexity)

  explicit TextView(
    T first,
    std::enable_if_t<!std::is_array_v<T> && std::is_pointer_v<T> && std::is_convertible_v<T, char const *>, T> last) noexcept
    : super_type(first, last - first) {}