fix a stupid typo and clarify windows error code

src/tiv.cpp

@@ -563,7 +563,7 @@ int main(int argc, char *argv[]) {
  // implementations are welcome Fallback sizes when unsuccesful
  int maxWidth = 80;
  int maxHeight = 24;
-#ifdef __POSIX_VERSION
+#ifdef _POSIX_VERSION
  struct winsize w;
  // If redirecting STDOUT to one file ( col or row == 0, or the previous
  // ioctl call's failed )
@@ -584,10 +584,9 @@ int main(int argc, char *argv[]) {
  maxWidth = w.dwSize.X * 4;
  maxHeight = w.dwSize.Y * 8;
  } else {
- std::cerr << GetLastError();
- std::cerr << "Warning: failed to determine most reasonable size, "
- "defaulting to 80x24"
- << std::endl;
+ std::cerr
+ << "Warning: failed to determine most reasonable size: Error code"
+ << GetLastError() << ", defaulting to 80x24" << std::endl;
  }
 #else
  std::cerr << "Warning: failed to determine most reasonable size: "