util-linux: libreadline for sfdisk required

package/util-linux/Makefile

@@ -32,7 +32,7 @@ PKGSC_AGETTY:=		base/apps
 PKGSS_AGETTY:=		libncurses
 PKGSD_SFDISK:=		scriptable partition table manipulation utility
 PKGSC_SFDISK:=		sys/fs
-PKGSS_SFDISK:=		libfdisk
+PKGSS_SFDISK:=		libfdisk libreadline
 PKGSD_CFDISK:=		partition table manipulation utility
 PKGSC_CFDISK:=		sys/fs
 PKGSS_CFDISK:=		libfdisk