Fixed overflow.

Author: janpgit

intro.tex

@@ -266,14 +266,14 @@
 \item Important extensions of IEEE Std 1003.1-1990 (they are part of IEEE Std
 1003.1, 2004 Edition):
 \begin{itemize}
-\item \emph{IEEE Std 1003.1b-1993 Realtime Extension}, informally known as
-POSIX.4, because that was its original naming before renumbering.
-Most of this extension is optional, therefore the claim ``system supports
-POSIX.1b'' gives even worse testimony that ``system is POSIX compatible'', i.e.
-practically zero. The only mandatory part of POSIX.4 is a simple addendum to
-signals compared to POSIX1990. It is therefore always necessary to state
-what exactly out of POSIX.4 is implemented -- e.g. shared memory, semaphores,
-real-time signals, memory locking, asynchronous I/O, timers, etc.
+\item \emph{IEEE Std 1003.1b-1993 Realtime Extension}, informally also known as
+POSIX.4, because that was its original naming before renumbering.  Most of this
+extension is optional, therefore the claim ``system supports POSIX.1b'' gives
+even worse testimony that ``system is POSIX compatible'', i.e.  practically
+zero. The only mandatory part of POSIX.4 is a simple addendum to signals
+compared to POSIX1990. It is therefore always necessary to state what exactly
+out of POSIX.4 is implemented -- e.g. shared memory, semaphores, real-time
+signals, memory locking, asynchronous I/O, timers, etc.
 \item \emph{IEEE Std 1003.1c-1995 Threads}, see page \pageref{POSIXTHREADS}.
 \item \emph{IEEE Std 1003.1d-1999 Additional Realtime Extensions}
 \item \emph{IEEE Std 1003.1j-2000 Advanced Realtime Extensions}, see page