Patch #1080684: typo repair. Thanks George Yoshida!

- Doc/lib/libbase64.tex
s/algorith/algorithm

- Doc/lib/libpickle.tex
s/interchangable/interchangeable

- Doc/lib/libxmlrpclib.tex
s/{_cmp__}/{__cmp__}

leading underscore needs to be double, not single.

- Doc/ref/ref6.tex
0/1 => False/True
diff --git a/Doc/lib/libbase64.tex b/Doc/lib/libbase64.tex
index b51f8c8..747d837 100644
--- a/Doc/lib/libbase64.tex
+++ b/Doc/lib/libbase64.tex
@@ -12,7 +12,7 @@
 \rfc{3548}.  This standard defines the Base16, Base32, and Base64
 algorithms for encoding and decoding arbitrary binary strings into
 text strings that can be safely sent by email, used as parts of URLs,
-or included as part of an HTTP POST request.  The encoding algorith is
+or included as part of an HTTP POST request.  The encoding algorithm is
 not the same as the \program{uuencode} program.
 
 There are two interfaces provided by this module.  The modern
diff --git a/Doc/lib/libpickle.tex b/Doc/lib/libpickle.tex
index 4013432..cf526a0 100644
--- a/Doc/lib/libpickle.tex
+++ b/Doc/lib/libpickle.tex
@@ -825,7 +825,7 @@
 
 There are additional minor differences in API between \module{cPickle}
 and \module{pickle}, however for most applications, they are
-interchangable.  More documentation is provided in the
+interchangeable.  More documentation is provided in the
 \module{pickle} module documentation, which
 includes a list of the documented differences.
 
diff --git a/Doc/lib/libxmlrpclib.tex b/Doc/lib/libxmlrpclib.tex
index 207839e..298a03d 100644
--- a/Doc/lib/libxmlrpclib.tex
+++ b/Doc/lib/libxmlrpclib.tex
@@ -184,7 +184,7 @@
 \end{methoddesc}
 
 It also supports certain of Python's built-in operators through 
-\method{_cmp__} and \method{__repr__} methods.
+\method{__cmp__} and \method{__repr__} methods.
 
 
 \subsection{Binary Objects \label{binary-objects}}
@@ -211,7 +211,7 @@
 \end{methoddesc}
 
 It also supports certain of Python's built-in operators through a
-\method{_cmp__()} method.
+\method{__cmp__()} method.
 
 
 \subsection{Fault Objects \label{fault-objects}}