Be more specific about where in RFC 1421 to look, since it's not at all

obvious when taking a quick look.

Say "base64" instead of "base-64", since that seems to be how it's referred
to in other RFCs.

Doc/lib/libbase64.tex

-\section{Standard Module \sectcode{base64}}
+\section{Standard Module \module{base64}}
 \label{module-base64}
 \stmodindex{base64}
-\indexii{base-64}{encoding}
-\index{MIME!base 64 encoding}
+\indexii{base64}{encoding}
+\index{MIME!base64 encoding}
 
-This module perform base-64 encoding and decoding of arbitrary binary
+This module perform base64 encoding and decoding of arbitrary binary
 strings into text strings that can be safely emailed or posted.  The
-encoding scheme is defined in \rfc{1421} and is used for MIME email and
+encoding scheme is defined in \rfc{1421} (``Privacy Enhancement for
+Internet Electronic Mail: Part I: Message Encryption and
+Authentication Procedures'', section 4.3.2.4, ``Step 4: Printable
+Encoding'') and is used for MIME email and
 various other Internet-related applications; it is not the same as the
-output produced by the \file{uuencode} program.  For example, the
+output produced by the \program{uuencode} program.  For example, the
 string \code{'www.python.org'} is encoded as the string
 \code{'d3d3LnB5dGhvbi5vcmc=\e n'}.  
 
@@ -24,13 +27,13 @@ mimic the file object interface. \var{input} will be read until
 
 \begin{funcdesc}{decodestring}{s}
 Decode the string \var{s}, which must contain one or more lines of
-base-64 encoded data, and return a string containing the resulting
+base64 encoded data, and return a string containing the resulting
 binary data.
 \end{funcdesc}
 
 \begin{funcdesc}{encode}{input, output}
 Encode the contents of the \var{input} file and write the resulting
-base-64 encoded data to the \var{output} file.
+base64 encoded data to the \var{output} file.
 \var{input} and \var{output} must either be file objects or objects that
 mimic the file object interface. \var{input} will be read until
 \code{\var{input}.read()} returns an empty string.
@@ -39,7 +42,5 @@ mimic the file object interface. \var{input} will be read until
 \begin{funcdesc}{encodestring}{s}
 Encode the string \var{s}, which can contain arbitrary binary data,
 and return a string containing one or more lines of
-base-64 encoded data.
+base64 encoded data.
 \end{funcdesc}
-
-

Doc/libbase64.tex

-\section{Standard Module \sectcode{base64}}
+\section{Standard Module \module{base64}}
 \label{module-base64}
 \stmodindex{base64}
-\indexii{base-64}{encoding}
-\index{MIME!base 64 encoding}
+\indexii{base64}{encoding}
+\index{MIME!base64 encoding}
 
-This module perform base-64 encoding and decoding of arbitrary binary
+This module perform base64 encoding and decoding of arbitrary binary
 strings into text strings that can be safely emailed or posted.  The
-encoding scheme is defined in \rfc{1421} and is used for MIME email and
+encoding scheme is defined in \rfc{1421} (``Privacy Enhancement for
+Internet Electronic Mail: Part I: Message Encryption and
+Authentication Procedures'', section 4.3.2.4, ``Step 4: Printable
+Encoding'') and is used for MIME email and
 various other Internet-related applications; it is not the same as the
-output produced by the \file{uuencode} program.  For example, the
+output produced by the \program{uuencode} program.  For example, the
 string \code{'www.python.org'} is encoded as the string
 \code{'d3d3LnB5dGhvbi5vcmc=\e n'}.  
 
@@ -24,13 +27,13 @@ mimic the file object interface. \var{input} will be read until
 
 \begin{funcdesc}{decodestring}{s}
 Decode the string \var{s}, which must contain one or more lines of
-base-64 encoded data, and return a string containing the resulting
+base64 encoded data, and return a string containing the resulting
 binary data.
 \end{funcdesc}
 
 \begin{funcdesc}{encode}{input, output}
 Encode the contents of the \var{input} file and write the resulting
-base-64 encoded data to the \var{output} file.
+base64 encoded data to the \var{output} file.
 \var{input} and \var{output} must either be file objects or objects that
 mimic the file object interface. \var{input} will be read until
 \code{\var{input}.read()} returns an empty string.
@@ -39,7 +42,5 @@ mimic the file object interface. \var{input} will be read until
 \begin{funcdesc}{encodestring}{s}
 Encode the string \var{s}, which can contain arbitrary binary data,
 and return a string containing one or more lines of
-base-64 encoded data.
+base64 encoded data.
 \end{funcdesc}
-
-