Fix the TeX compile error.

diff --git a/Doc/ref/ref2.tex b/Doc/ref/ref2.tex
index b32eaa64645d029b63699b6aaa2110df0f64d8fd..acce7684056d1173512cfc9bf562409801013080 100644 (file)
--- a/Doc/ref/ref2.tex
+++ b/Doc/ref/ref2.tex
@@ -321,7 +321,7 @@ def       for       lambda    try
 
 Note that although the identifier \code{as} can be used as part of the
 syntax of \keyword{import} statements, it is not currently a reserved
-word by default.}
+word by default.)
 
 \versionchanged[Both \keyword{as} and \keyword{with} are only recognized
 when the \code{with_statement} feature has been enabled.  It will always