Remove dots in \version{changed,added} argument and
correct argument order.
diff --git a/Doc/lib/libfuncs.tex b/Doc/lib/libfuncs.tex
index 98b4cfd..6146c38 100644
--- a/Doc/lib/libfuncs.tex
+++ b/Doc/lib/libfuncs.tex
@@ -536,7 +536,7 @@
 \begin{funcdesc}{hex}{x}
   Convert an integer number (of any size) to a hexadecimal string.
   The result is a valid Python expression.
-  \versionchanged[Formerly only returned an unsigned literal.]{2.4}
+  \versionchanged[Formerly only returned an unsigned literal]{2.4}
 \end{funcdesc}
 
 \begin{funcdesc}{id}{object}
@@ -708,7 +708,7 @@
 \begin{funcdesc}{oct}{x}
   Convert an integer number (of any size) to an octal string.  The
   result is a valid Python expression.
-  \versionchanged[Formerly only returned an unsigned literal.]{2.4}
+  \versionchanged[Formerly only returned an unsigned literal]{2.4}
 \end{funcdesc}
 
 \begin{funcdesc}{open}{filename\optional{, mode\optional{, bufsize}}}
@@ -1171,7 +1171,7 @@
 
   \versionchanged[Formerly, \function{zip()} required at least one argument
   and \code{zip()} raised a \exception{TypeError} instead of returning
-  an empty list.]{2.4}
+  an empty list]{2.4}
 \end{funcdesc}