bug [ 728515 ] mmap's resize method resizes the file in win32 but not unix
diff --git a/Doc/lib/libmmap.tex b/Doc/lib/libmmap.tex
index 0d7baa1..c7ab348 100644
--- a/Doc/lib/libmmap.tex
+++ b/Doc/lib/libmmap.tex
@@ -132,6 +132,7 @@
 \end{methoddesc}
 
 \begin{methoddesc}{resize}{\var{newsize}}
+  Resizes the map and the underlying file, if any.
   If the mmap was created with \constant{ACCESS_READ} or
   \constant{ACCESS_COPY}, resizing the map will throw a \exception{TypeError} exception.
 \end{methoddesc}