Fix an amazing number of typos & malformed sentences reported by Detlef
Lannert <lannert@uni-duesseldorf.de>.
diff --git a/Doc/lib/libuser.tex b/Doc/lib/libuser.tex
index 484af7e..9e9c6ed 100644
--- a/Doc/lib/libuser.tex
+++ b/Doc/lib/libuser.tex
@@ -57,7 +57,7 @@
program-specific customization file.
Programs with security or privacy concerns should \emph{not} import
-this module; a user can easily break into a a program by placing
+this module; a user can easily break into a program by placing
arbitrary code in the \file{.pythonrc.py} file.
Modules for general use should \emph{not} import this module; it may