typos, layout and other small things
diff --git a/Doc/libmacdnr.tex b/Doc/libmacdnr.tex
index cd3625c..ab45788 100644
--- a/Doc/libmacdnr.tex
+++ b/Doc/libmacdnr.tex
@@ -3,57 +3,58 @@
\bimodindex{macdnr}
This module provides an interface to the Macintosh Domain Name
-Resolver. It is usually used in conjunction with the \var{mactcp} module, to
-map hostnames to IP-addresses.
+Resolver. It is usually used in conjunction with the \var{mactcp}
+module, to map hostnames to IP-addresses. It may not be available in
+all Mac Python versions.
The \code{macdnr} module defines the following functions:
\renewcommand{\indexsubitem}{(in module macdnr)}
\begin{funcdesc}{Open}{\optional{filename}}
-Open the domain name resolver extension. If \var{filename} is given it
+Open the domain name resolver extension. If \var{filename} is given it
should be the pathname of the extension, otherwise a default is
-used. Normally, this call is not needed since the other calls will
+used. Normally, this call is not needed since the other calls will
open the extension automatically.
\end{funcdesc}
\begin{funcdesc}{Close}{}
-Close the resolver extension. Again, not needed for normal use.
+Close the resolver extension. Again, not needed for normal use.
\end{funcdesc}
\begin{funcdesc}{StrToAddr}{hostname}
-Look up the IP address for \var{hostname}. This call returns a dnr
+Look up the IP address for \var{hostname}. This call returns a dnr
result object of the ``address'' variation.
\end{funcdesc}
\begin{funcdesc}{AddrToName}{addr}
Do a reverse lookup on the 32-bit integer IP-address
-\var{addr}. Returns a dnr result object of the ``address'' variation.
+\var{addr}. Returns a dnr result object of the ``address'' variation.
\end{funcdesc}
\begin{funcdesc}{AddrToStr}{addr}
Convert the 32-bit integer IP-address \var{addr} to a dotted-decimal
-string. Returns the string.
+string. Returns the string.
\end{funcdesc}
\begin{funcdesc}{HInfo}{hostname}
Query the nameservers for a \code{HInfo} record for host
-\var{hostname}. These records contain hardware and software
+\var{hostname}. These records contain hardware and software
information about the machine in question (if they are available in
-the first place). Returns a dnr result object of the ``hinfo''
+the first place). Returns a dnr result object of the ``hinfo''
variety.
\end{funcdesc}
\begin{funcdesc}{MXInfo}{domain}
-Query the nameservers for a mail exchanger for \var{domain}. This is
+Query the nameservers for a mail exchanger for \var{domain}. This is
the hostname of a host willing to accept SMTP mail for the given
-domain. Returns a dnr result object of the ``mx'' variety.
+domain. Returns a dnr result object of the ``mx'' variety.
\end{funcdesc}
\subsection{dnr result object}
Since the DNR calls all execute asynchronously you do not get the
-results back immedeately. In stead, you get a dnr result object. You
+results back immediately. Instead, you get a dnr result object. You
can check this object to see whether the query is complete, and access
its attributes to obtain the information when it is.
@@ -89,23 +90,23 @@
\dataline{ip1}
\dataline{ip2}
\dataline{ip3}
-At most four integer IP addresses for this host. Unused entries are
-zero. Valid only for address queries.
+At most four integer IP addresses for this host. Unused entries are
+zero. Valid only for address queries.
\end{datadesc}
\begin{datadesc}{cpuType}
\dataline{osType}
-Textual strings giving the machine type an OS name. Valid for hinfo
+Textual strings giving the machine type an OS name. Valid for hinfo
queries.
\end{datadesc}
\begin{datadesc}{exchange}
-The name of a mail-exchanger host. Valid for mx queries.
+The name of a mail-exchanger host. Valid for mx queries.
\end{datadesc}
\begin{datadesc}{preference}
-The preference of this mx record. Not too useful, since the Macintosh
-will only return a single mx record. Mx queries only.
+The preference of this mx record. Not too useful, since the Macintosh
+will only return a single mx record. Mx queries only.
\end{datadesc}
The simplest way to use the module to convert names to dotted-decimal