Editorial: fix typo in Number.prototype.toExponential (tc39#2450)

spec.html

@@ -26922,7 +26922,7 @@ <h1>Number.prototype.toExponential ( _fractionDigits_ )</h1>
             1. Let _e_ be 0.
           1. Else,
             1. If _fractionDigits_ is not *undefined*, then
-              1. Let _e_ and _n_ be integers such that 10<sup>_f_</sup> &le; _n_ &lt; 10<sup>_f_ + 1</sup> and for which _n_ &times; 10<sup>_e_ - _n_</sup> - _x_ is as close to zero as possible. If there are two such sets of _e_ and _n_, pick the _e_ and _n_ for which _n_ &times; 10<sup>_e_ - _f_</sup> is larger.
+              1. Let _e_ and _n_ be integers such that 10<sup>_f_</sup> &le; _n_ &lt; 10<sup>_f_ + 1</sup> and for which _n_ &times; 10<sup>_e_ - _f_</sup> - _x_ is as close to zero as possible. If there are two such sets of _e_ and _n_, pick the _e_ and _n_ for which _n_ &times; 10<sup>_e_ - _f_</sup> is larger.
             1. Else,
               1. [id="step-number-proto-toexponential-intermediate-values"] Let _e_, _n_, and _f_ be integers such that _f_ &ge; 0, 10<sup>_f_</sup> &le; _n_ &lt; 10<sup>_f_ + 1</sup>, _n_ &times; 10<sup>_e_ - _f_</sup> is _x_, and _f_ is as small as possible. Note that the decimal representation of _n_ has _f_ + 1 digits, _n_ is not divisible by 10, and the least significant digit of _n_ is not necessarily uniquely determined by these criteria.
             1. Let _m_ be the String value consisting of the digits of the decimal representation of _n_ (in order, with no leading zeroes).