[expr.const] Fix typo 'evalution'.

zygoloid · zygoloid · commit ef6c5a099def · 2014-09-23T15:58:07.000-07:00
diff --git a/source/expressions.tex b/source/expressions.tex
@@ -4589,7 +4589,7 @@
 
   \item
   a non-volatile glvalue of literal type that refers to a non-volatile object
-  whose lifetime began within the evalution of \tcode{e};
+  whose lifetime began within the evaluation of \tcode{e};
 \end{itemize}
 
 \item
