sysutils/conky: IMLIB2 and LUA_IMLIB2 as default

This was requested by a FreeBSD/conky user.
It adds no burden to the build to add IMLIB2 to the default build but has the
advantage of allowing the use of the ${image} command.

sysutils/conky/Makefile

@@ -35,8 +35,8 @@ PORTEXAMPLES=	conky.conf conky_no_x11.conf convert.lua
 OPTIONS_DEFINE=	APCUPSD CURL DOCS EXAMPLES IPV6 MANPAGES METAR MOC MPD NCURSES \
 		RSS WAYLAND X11 XOAP
 
-OPTIONS_DEFAULT?=	ARGB DOUBLE_BUFFER LUA_CAIRO MANPAGES MOUSE_EVENTS \
-			WAYLAND X11 XFT
+OPTIONS_DEFAULT?=	ARGB DOUBLE_BUFFER IMLIB2 LUA_CAIRO LUA_IMLIB2 \
+			MANPAGES MOUSE_EVENTS WAYLAND X11 XFT
 OPTIONS_GROUP?=		X11
 OPTIONS_GROUP_X11=	ARGB DOUBLE_BUFFER IMLIB2 LUA_CAIRO LUA_IMLIB2 LUA_RSVG \
 			MOUSE_EVENTS XFT XINERAMA