xfce4 ver. bump 4.

desktop/xfce/base/garcon/pspec.xml

@@ -15,19 +15,17 @@
 		<Description>
 			garcon is an implementation of the freedesktop.org menu specification replacing the former Xfce menu library libxfce4menu. It is based on GLib/GIO only and aims at covering the entire specification except for legacy menus.
 		</Description>
-		<Archive sha1sum="3e3785461bb9eff443fd6ad3677e6f0bb0c918d7" type="tarbz2">
-			https://archive.xfce.org/xfce/4.16/src/garcon-0.8.0.tar.bz2
-		</Archive>
+        <Archive sha1sum="3e3785461bb9eff443fd6ad3677e6f0bb0c918d7" type="tarbz2">https://archive.xfce.org/xfce/4.16/src/garcon-0.8.0.tar.bz2</Archive>
 		<BuildDependencies>
 			<Dependency>python3</Dependency>
 			<Dependency>intltool</Dependency>
 			<Dependency>python-six</Dependency>
-			<!-- <Dependency>gtk2-devel</Dependency> -->
+<!-- 			<Dependency>gtk2-devel</Dependency> -->
 			<Dependency>gtk3-devel</Dependency>
 			<Dependency>glib2-devel</Dependency>
 			<Dependency>freetype-devel</Dependency>
-			<Dependency>libxfce4ui-devel</Dependency>
-			<Dependency>libxfce4util-devel</Dependency>
+			<Dependency versionFrom="4.16.0">libxfce4ui-devel</Dependency>
+			<Dependency versionFrom="4.16.0">libxfce4util-devel</Dependency>
 			<Dependency>gobject-introspection-devel</Dependency>
 		</BuildDependencies>
 	</Source>
@@ -59,7 +57,7 @@
 			<Dependency>gtk2-devel</Dependency>
 			<Dependency>gtk3-devel</Dependency>
 			<Dependency>glib2-devel</Dependency>
-			<Dependency>libxfce4ui-devel</Dependency>
+			<Dependency versionFrom="4.16.0">libxfce4ui-devel</Dependency>
 			<Dependency release="current">garcon</Dependency>
 		</RuntimeDependencies>
 		<Files>
@@ -79,8 +77,8 @@
 		</Files>
 	</Package>
 
-	<History>
-		<Update release="2">
+    <History>
+        <Update release="2">
 			<Date>2020-12-24</Date>
 			<Version>0.8.0</Version>
 			<Comment>New release.</Comment>