Normalized the word "Unix" to "\UNIX{}".
Changed "{\tt crypt}" to "\sectcode{crypt}" in section heading.
diff --git a/Doc/lib/libcrypt.tex b/Doc/lib/libcrypt.tex
index 8a4ec92..d09a2a4 100644
--- a/Doc/lib/libcrypt.tex
+++ b/Doc/lib/libcrypt.tex
@@ -1,12 +1,12 @@
-\section{Built-in Module {\tt crypt}}
+\section{Built-in Module \sectcode{crypt}}
\label{module-crypt}
\bimodindex{crypt}
This module implements an interface to the crypt({\bf 3}) routine,
which is a one-way hash function based upon a modified DES algorithm;
-see the Unix man page for further details. Possible uses include
+see the \UNIX{} man page for further details. Possible uses include
allowing Python scripts to accept typed passwords from the user, or
-attempting to crack Unix passwords with a dictionary.
+attempting to crack \UNIX{} passwords with a dictionary.
\index{crypt(3)}
\renewcommand{\indexsubitem}{(in module crypt)}