[clang-tools-extra] [clang-tidy][NFC] Clarify some options use regex to matching in doc (1/N) (PR #161142)

[Victor Chernyakin via cfe-commits]

================
@@ -122,25 +122,26 @@ Options
 
 .. option:: PrintfLikeFunctions
 
-   A semicolon-separated list of (fully qualified) function names to
-   replace, with the requirement that the first parameter contains the
-   printf-style format string and the arguments to be formatted follow
-   immediately afterwards. Qualified member function names are supported,
-   but the replacement function name must be unqualified. If neither this
-   option nor `FprintfLikeFunctions` are set then the default value for
-   this option is `printf; absl::PrintF`, otherwise it is empty.
+   A semicolon-separated list of regular expressions matching the 
+   (fully qualified) names of functions to replace, with the requirement
+   that the first parameter contains the printf-style format string and the
+   arguments to be formatted follow immediately afterwards. Qualified member
+   function names are supported, but the replacement function name must be
+   unqualified. If neither this option nor `FprintfLikeFunctions` are set then
+   the default value is `printf; absl::PrintF`, otherwise it is empty string.
 
 
 .. option:: FprintfLikeFunctions
 
-   A semicolon-separated list of (fully qualified) function names to
-   replace, with the requirement that the first parameter is retained, the
-   second parameter contains the printf-style format string and the
-   arguments to be formatted follow immediately afterwards. Qualified
-   member function names are supported, but the replacement function name
-   must be unqualified. If neither this option nor `PrintfLikeFunctions`
-   are set then the default value for this option is `fprintf;
-   absl::FPrintF`, otherwise it is empty.
+   A semicolon-separated list of regular expressions matching the 
+   (fully qualified) names of functions to replace, with the requirement
+   that the first parameter is retained, the second parameter contains the
+   printf-style format string and the arguments to be formatted follow
+   immediately afterwards. Qualified member function names are supported,
+   but the replacement function name must be unqualified. If neither this
+   option nor `PrintfLikeFunctions` are set then the default value is 
+   `fprintf;absl::FPrintF`, otherwise it is empty string.
----------------
localspook wrote:

```suggestion
   `fprintf;absl::FPrintF`, otherwise it is the empty string.
```

https://github.com/llvm/llvm-project/pull/161142