[meta.reflection.member.queries] Fixed font, typo

Author: tkoeppe

source/meta.tex

@@ -5569,7 +5569,7 @@
 Let $C$ be the class represented by \tcode{dealias(type)}.
 A \tcode{vector} containing the reflections
 of all the direct base class relationships of $B$, if any,
-of $C$ such that \tcode{is_accessible(\brk{}\reflexpr{B}, txt)} is \tcode{true}.
+of $C$ such that \tcode{is_accessible(\brk{}\reflexpr{$B$}, ctx)} is \tcode{true}.
 The direct base class relationships appear in the order in which
 the corresponding base classes appear in the \grammarterm{base-specifier-list} of $C$.