[clang-tools-extra] [NFC][clang-tidy] Update documentation for StatusOr check. (PR #176498)

[via cfe-commits]

================
@@ -317,9 +317,9 @@ example:
 
 .. code:: cpp
 
-   void f(std::vector<absl::StatusOr<int>> sors) {
-     if (sors[0].ok()) {
-       use(*sors[0]); // unsafe: it is unclear whether the status of `sors[0]` is ok.
+   void f(std::vector<absl::StatusOr<int>> xs) {
----------------
EugeneZelenko wrote:

Ditto.

https://github.com/llvm/llvm-project/pull/176498