Use 'test -f' since Sun's shell doesn't have 'test -e'

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@33688 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

samples/help/Makefile.in

@@ -177,7 +177,7 @@ help.app/Contents/PkgInfo: help$(EXEEXT) $(top_srcdir)/src/mac/carbon/Info.plist
 data: 
 	@mkdir -p .
 	@for f in back.gif books.gif bullet.bmp contents.gif cshelp.txt doc.chm doc.cnt doc.hhc doc.hhk doc.hhp doc.hlp doc.hpj doc.zip forward.gif up.gif; do \
-	if test ! -e ./$$f ; \
+	if test ! -f ./$$f ; \
 	then x=yep ; \
 	else x=`find $(srcdir)/$$f -newer ./$$f -print` ; \
 	fi; \
@@ -189,7 +189,7 @@ data:
 data_doc: 
 	@mkdir -p ./doc
 	@for f in aindex.html ClassGraph.class ClassGraphPanel.class ClassLayout.class down.gif dxxgifs.tex HIER.html HIERjava.html icon1.gif icon2.gif index.html logo.gif NavigatorButton.class USE_HELP.html wx204.htm wx34.htm wxExtHelpController.html wxhelp.map wx.htm; do \
-	if test ! -e ./doc/$$f ; \
+	if test ! -f ./doc/$$f ; \
 	then x=yep ; \
 	else x=`find $(srcdir)/doc/$$f -newer ./doc/$$f -print` ; \
 	fi; \