build vignette("reshape") also on Windows (amends r80220)

git-svn-id: https://svn.r-project.org/R/trunk@87823 00db46b3-68df-0310-9c12-caf00c1e9a41

Author: smeyer

src/library/Makefile.win

@@ -96,7 +96,7 @@ Rdfiles:
 	done
 
 vignettes:
-	@for pkg in grid parallel utils; do \
+	@for pkg in grid parallel utils stats; do \
 	    $(ECHO) "building/updating vignettes for package '$${pkg}' ..."; \
 	    ($(ECHO) "tools:::.install_package_vignettes(\"$(srcdir)/$${pkg}\", \"$(top_builddir)/library/$${pkg}\")") | \
 	        R_DEFAULT_PACKAGES="utils,tools" LC_ALL=C \