Rob W. W. Hooft's spelling fixes for the Library Reference. I hope
SourceForge doesn't choke on this batch :-)

I'm not entirely sure this is 100% correct. The patch changes an
\index{persistency} to \index{presistence}, and I don't know what \index{}
does. But it seems to do so persi--er, consistently, so I hope it isn't a
problem.
diff --git a/Doc/lib/libintro.tex b/Doc/lib/libintro.tex
index 70c7c70..c17484f 100644
--- a/Doc/lib/libintro.tex
+++ b/Doc/lib/libintro.tex
@@ -25,7 +25,7 @@
 operating systems, such as access to specific hardware; others provide
 interfaces that are
 specific to a particular application domain, like the World-Wide Web.
-Some modules are avaiable in all versions and ports of Python; others
+Some modules are available in all versions and ports of Python; others
 are only available when the underlying system supports or requires
 them; yet others are available only when a particular configuration
 option was chosen at the time when Python was compiled and installed.