Lots of explicit class names for method and member descs.
diff --git a/Doc/lib/libdatetime.tex b/Doc/lib/libdatetime.tex
index 0d2b5bb..fb13ea7 100644
--- a/Doc/lib/libdatetime.tex
+++ b/Doc/lib/libdatetime.tex
@@ -1154,7 +1154,7 @@
uses made of aware \module{datetime} objects. If in doubt, simply
implement all of them.
-\begin{methoddesc}{utcoffset}{self, dt}
+\begin{methoddesc}[tzinfo]{utcoffset}{self, dt}
Return offset of local time from UTC, in minutes east of UTC. If
local time is west of UTC, this should be negative. Note that this
is intended to be the total offset from UTC; for example, if a
@@ -1178,7 +1178,7 @@
\exception{NotImplementedError}.
\end{methoddesc}
-\begin{methoddesc}{dst}{self, dt}
+\begin{methoddesc}[tzinfo]{dst}{self, dt}
Return the daylight saving time (DST) adjustment, in minutes east of
UTC, or \code{None} if DST information isn't known. Return
\code{timedelta(0)} if DST is not in effect.
@@ -1237,7 +1237,7 @@
\exception{NotImplementedError}.
\end{methoddesc}
-\begin{methoddesc}{tzname}{self, dt}
+\begin{methoddesc}[tzinfo]{tzname}{self, dt}
Return the time zone name corresponding to the \class{datetime}
object \var{dt}, as a string.
Nothing about string names is defined by the
@@ -1278,7 +1278,7 @@
There is one more \class{tzinfo} method that a subclass may wish to
override:
-\begin{methoddesc}{fromutc}{self, dt}
+\begin{methoddesc}[tzinfo]{fromutc}{self, dt}
This is called from the default \class{datetime.astimezone()}
implementation. When called from that, \code{\var{dt}.tzinfo} is
\var{self}, and \var{dt}'s date and time members are to be viewed as