Making the spell checker happy (hopefully).

Author: janpgit

threads.tex

@@ -965,7 +965,7 @@
 wake-up} even if a dedicated condition variable is used for every possible
 state -- it may happen that the system can wake up a sleeping thread (because
 of various implementation reasons) without any other thread causing this; it is
-called a \emph{spurious wakeup}.
+called a \emph{spurious wake-up}.
 \end{itemize}
 
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