[over.match.best] Use new "rewritten candidates" terminology to simplify

wording.

Author: zygoloid

source/overloading.tex

@@ -1764,10 +1764,8 @@
 or, if not that,
 
 \item
-\tcode{F1} is an operator function
-for a relational\iref{expr.rel} or equality\iref{expr.eq} operator
-and \tcode{F2} is an operator function
-for a three-way comparison operator\iref{expr.spaceship}
+\tcode{F2} is a rewritten candidate\iref{over.match.oper} and
+\tcode{F1} is not
 \begin{example}
 \begin{codeblock}
 struct S {
@@ -1780,8 +1778,7 @@
 or, if not that,
 
 \item
-\tcode{F1} and \tcode{F2} are operator functions
-for \tcode{operator<=>} and
+\tcode{F1} and \tcode{F2} are rewritten candidates, and
 \tcode{F2} is a synthesized candidate
 with reversed order of parameters
 and \tcode{F1} is not