improve wording

Author: vladak

threads.tex

@@ -1519,10 +1519,10 @@
 thread safe. That said, it does not make it totally safe to use.
 (not mentioning that a program relying on this behavior is not portable)
 see example \example{reentrant/gethostbyname.c}.
-A bit better is to use reentrant version of this function called 
+A bit better is to use reentrant version of this function called
 \texttt{gethostbyname\_r} (if it is available on given system),
 which takes the address of where the result will be stored as parameter,
-which makes it reentrant. Much better is to use standard function
+which makes it reentrant. Better yet is to use standard function
 \texttt{getaddrinfo} (see page) \pageref{GETADDRINFO}, which is reentrant
 by itself.