add format to fix spelling

Author: Vladimir Kotal

threads.tex

@@ -1211,10 +1211,10 @@
 calls function \funnm{pthread\_rwlock\_rdlock} and there is at least one thread
 waiting in \funnm{pthread\_rwlock\_wrlock}, the writer will be given precedence.
 See \example{pthreads/pthread-rwlock-pref.c}.
-\item There is a maximum number of locks allowed for each lock in any pthread
-implementation (inferred from the type that holds the lock count). If the
-maximum is reached \funnm{pthread\_rwlock\_rdlock} returns the \texttt{EAGAIN}
-error, see \example{pthreads/pthread-rwlock-limit.c}.
+\item There is a maximum number of locks allowed for each lock in any
+\texttt{pthread} implementation (inferred from the type that holds the lock
+count). If the maximum is reached \funnm{pthread\_rwlock\_rdlock} returns the
+\texttt{EAGAIN} error, see \example{pthreads/pthread-rwlock-limit.c}.
 \end{itemize}
 
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