[concept.booleantestable] Provide value category to deduction

Author: opensdh

source/concepts.tex

@@ -895,7 +895,7 @@
 template argument deduction
 using the rules for deducing template arguments
 in a function call\iref{temp.deduct.call} and
-the type of \tcode{e} as the argument type succeeds.
+\tcode{e} as the argument succeeds.
 \end{itemize}
 \end{itemize}