fix wording

Author: Vladimir Kotal

signals.tex

@@ -138,13 +138,13 @@
 \item unless a process sets it otherwise, each signal triggers a specific
 default action, one of:
     \begin{itemize}
-    \item terminate the process (\emsl{exit}) 
+    \item terminate the process (\emsl{exit})
     \item terminate and dump a core (\emsl{core})
     \item ignore the signal (\emsl{ignore})
     \item stop the process (\emsl{stop})
-    \item resume the process (\emsl{continue}) 
+    \item resume the process (\emsl{continue})
     \end{itemize}
-\item process can either set to ignore a specific signal\dots
+\item process can either choose to ignore a specific signal\dots
 \item \dots{}or can handle the signal via a user-defined function,
 called a \emsl{handler}
 \end{itemize}