dillo: fix pkg depends

package/dillo/Makefile

@@ -10,7 +10,7 @@ PKG_HASH:=		1066ed42ea7fe0ce19e79becd029c651c15689922de8408e13e70bb5701931bf
 PKG_DESCR:=		small graphical web browser
 PKG_SECTION:=		x11/apps
 PKG_DEPENDS:=		libfltk libxi libpng zlib libjpeg-turbo libopenssl
-PKG_DEPENDS:=		libXrender libXfixes libXext fontconfig libxml2
+PKG_DEPENDS+=		libXrender libXfixes libXext fontconfig libxml2
 PKG_BUILDDEP:=		fltk libXi libjpeg-turbo libpng zlib openssl
 PKG_NEEDS:=		threads cxx
 PKG_URL:=		https://dillo-browser.github.io/