fix doc inline code line break

Author: 5chmidti

clang-tools-extra/docs/clang-tidy/checks/modernize/use-constexpr.rst

@@ -58,7 +58,7 @@ Options
 
 .. option:: ConstexprString
 
-  The string to use with C++23 to specify a function-local variable as ``static
-  constexpr``, for example, a macro. Default is ``static constexpr``
+  The string to use with C++23 to specify a function-local variable as 
+  ``static constexpr``, for example, a macro. Default is ``static constexpr``
   (concatenating ``static `` with the `ConstexprString` option).