typos, layout and other small things
diff --git a/Doc/libdbm.tex b/Doc/libdbm.tex
index 6e72567..7e004d2 100644
--- a/Doc/libdbm.tex
+++ b/Doc/libdbm.tex
@@ -18,7 +18,8 @@
\begin{funcdesc}{open}{filename\, rwmode\, filemode}
Open a dbm database and return a mapping object. \var{filename} is
the name of the database file (without the \file{.dir} or \file{.pag}
-extensions), \var{rwmode} is \code{'r'}, \code{'w'} or \code{'rw'} as for
-\code{open}, and \var{filemode} is the \UNIX{} mode of the file, used only
-when the database has to be created.
+extensions), \var{rwmode} is \code{'r'}, \code{'w'} or \code{'rw'} to
+open the database fore reading, writing or both respectively,
+and \var{filemode} is the \UNIX{} mode of the file, used only
+when the database has to be created (but to be supplied at all times).
\end{funcdesc}