[over.literal] Use a valid parameter-declaration-clause for a literal

operator in example that claims to be "OK".

Author: zygoloid

source/overloading.tex

@@ -3288,8 +3288,8 @@
 template <char...> double operator "" _\u03C0();    // OK: UCN for lowercase pi
 float operator ""_e(const char*);                   // OK
 float operator ""E(const char*);                    // error: reserved literal suffix~(\ref{usrlit.suffix}, \ref{lex.ext})
-double operator""_Bq(double);                       // OK: does not use the reserved name \tcode{_Bq}~(\ref{global.names})
-double operator"" _Bq(double);                      // uses the reserved name \tcode{_Bq}~(\ref{global.names})
+double operator""_Bq(long double);                  // OK: does not use the reserved name \tcode{_Bq}~(\ref{global.names})
+double operator"" _Bq(long double);                 // uses the reserved name \tcode{_Bq}~(\ref{global.names})
 float operator " " B(const char*);                  // error: non-empty \grammarterm{string-literal}
 string operator "" 5X(const char*, std::size_t);    // error: invalid literal suffix identifier
 double operator "" _miles(double);                  // error: invalid \grammarterm{parameter-declaration-clause}