Various minor edits

Doc/howto/TODO

 
 Short-term tasks:
-  Quick revision pass to make HOWTOs match the current state of Python:
-doanddont regex sockets sorting
+  Quick revision pass to make HOWTOs match the current state of Python
+doanddont regex sockets
 
 Medium-term tasks:
  Revisit the regex howto.  

Doc/howto/doanddont.tex

@@ -32,7 +32,7 @@ plain dangerous.
 \subsubsection{Inside Function Definitions}
 
 \code{from module import *} is {\em invalid} inside function definitions.
-While many versions of Python do no check for the invalidity, it does not
+While many versions of Python do not check for the invalidity, it does not
 make it more valid, no more then having a smart lawyer makes a man innocent.
 Do not use it like that ever. Even in versions where it was accepted, it made
 the function execution slower, because the compiler could not be certain