Weaken recommendation of Friedl book; fix reference
diff --git a/Doc/lib/libre.tex b/Doc/lib/libre.tex
index a82a0e4..002af7e 100644
--- a/Doc/lib/libre.tex
+++ b/Doc/lib/libre.tex
@@ -35,9 +35,9 @@
\begin{seealso}
\seetitle{Mastering Regular Expressions}{Book on regular expressions
- by Jeffrey Friedl, published by O'Reilly. The Python
- material in this book dates from before the \refmodule{re}
- module, but it covers writing good regular expression
+ by Jeffrey Friedl, published by O'Reilly. The second
+ edition of the book no longer covers Python at all,
+ but the first edition covered writing good regular expression
patterns in great detail.}
\end{seealso}
@@ -58,7 +58,7 @@
expressions can easily be constructed from simpler primitive
expressions like the ones described here. For details of the theory
and implementation of regular expressions, consult the Friedl book
-referenced below, or almost any textbook about compiler construction.
+referenced above, or almost any textbook about compiler construction.
A brief explanation of the format of regular expressions follows. For
further information and a gentler presentation, consult the Regular