[basic.link] fix unusual punctuation in p4

source/basic.tex

@@ -2694,35 +2694,35 @@
 that has not been given internal linkage above
 and that is the name of
 \begin{itemize}
-\item a variable; or
-\item a function; or
+\item a variable, or
+\item a function, or
 \item
 \indextext{class!linkage of}%
 a named class\iref{class.pre}, or an unnamed class defined in a
 typedef declaration in which the class has the typedef name for linkage
-purposes\iref{dcl.typedef}; or
+purposes\iref{dcl.typedef}, or
 \item
 \indextext{enumeration!linkage of}%
 a named enumeration\iref{dcl.enum}, or an unnamed enumeration defined
 in a typedef declaration in which the enumeration has the typedef name
-for linkage purposes\iref{dcl.typedef}; or
+for linkage purposes\iref{dcl.typedef}, or
 \item an unnamed enumeration
-that has an enumerator as a name for linkage purposes\iref{dcl.enum}; or
+that has an enumerator as a name for linkage purposes\iref{dcl.enum}, or
 \item a template
 \end{itemize}
 has its linkage determined as follows:
 \begin{itemize}
 \item
-if the enclosing namespace has internal linkage,
-the name has internal linkage;
+If the enclosing namespace has internal linkage,
+the name has internal linkage.
 \item
-otherwise,
+Otherwise,
 if the declaration of the name is
 attached to a named module\iref{module.unit}
 and is not exported\iref{module.interface},
-the name has module linkage;
+the name has module linkage.
 \item
-otherwise,
+Otherwise,
 the name has external linkage.
 \end{itemize}