[temp.constr.normal] Use "contains (a pack)" instead of "names"

Author: lprv

source/templates.tex

@@ -2126,13 +2126,13 @@
   \item
   The normal form of an expression \tcode{F} of the form \tcode{( E Op ... )}
   is as follows:\\
-  If \tcode{E} names any unexpanded concept template parameter pack,
-  it shall not name any unexpanded template parameter pack of another kind.
+  If \tcode{E} contains an unexpanded concept template parameter pack,
+  it shall not contain an unexpanded template parameter pack of another kind.
   Let \tcode{E$'$} be the normal form of \tcode{E}.
     \begin{itemize}
     \item
-    If \tcode{E} names
-    any unexpanded concept template parameter pack \tcode{P$_k$} that
+    If \tcode{E} contains
+    an unexpanded concept template parameter pack \tcode{P$_k$} that
     has corresponding template arguments in
     the parameter mapping of any atomic constraint
     (including concept-dependent constraints) of \tcode{E$'$},