Contribs: fix sparkle compatibility for OSX 5

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

contrib/src/sparkle/rules.mak

@@ -16,9 +16,8 @@ sparkle: sparkle-$(SPARKLE_VERSION).zip .sum-sparkle
 	$(RM) -R $@ && mkdir -p $@ && cd $@ && unzip ../$<
 	cd $@/Extras/Source\ Code/Configurations && \
 		sed -i.orig -e s/"GCC_TREAT_WARNINGS_AS_ERRORS = YES"/"GCC_TREAT_WARNINGS_AS_ERRORS = NO"/g \
-            -e s/"ARCHS = .*"/"ARCHS = $(ARCH)"/ \
-			ConfigCommonRelease.xcconfig && \
-		sed -i.orig -e s/10\.4/$(OSX_VERSION)/g -e s/10\.5/$(OSX_VERSION)/g ConfigCommon.xcconfig
+                    -e s/"ARCHS = .*"/"ARCHS = $(ARCH)"/  ConfigCommonRelease.xcconfig && \
+		sed -i.orig -e s/MacOSX10.5.sdk/MacOSX$(OSX_VERSION).sdk/g ConfigCommon.xcconfig
 	touch $@
 
 .sparkle: sparkle