message: common: update splitToken comment
  Update comment with correct return  value
diff: @@ -290,7 +290,7 @@ public:
  * @param multi-delimiter supplies chars used to split the delimiter-separated string view.
  * @param keep_empty_string result contains empty strings if the string starts or ends with
  * 'split', or if instances of 'split' are adjacent; default = false.
  - * @return true if found and false otherwise.
  + * @return vector containing views of the split strings
  */
  static std::vector<absl::string_view> splitToken(absl::string_view source,
  absl::string_view delimiters,
  