Consistency: "{\bf ...}" ==> "\strong{...}"
"{\em ...}" ==> "\emph{...}"
Not at all sure what to do with "{\rm ...}".
Leaving it for now.
diff --git a/Doc/tut/tut.tex b/Doc/tut/tut.tex
index f59e103..976d2d9 100644
--- a/Doc/tut/tut.tex
+++ b/Doc/tut/tut.tex
@@ -3156,7 +3156,7 @@
self.__vdict[name] = value
\end{verbatim}
-%{\em Warning: this is an experimental feature.} To avoid all
+%\emph{Warning: this is an experimental feature.} To avoid all
%potential problems, refrain from using identifiers starting with
%double underscore except for predefined uses like \code{__init__}. To
%use private names while maintaining future compatibility: refrain from