mklive: fix guessing linux kernel pkgname.

mklive.sh.in

@@ -347,9 +347,9 @@ copy_void_keys $VOIDHOSTDIR
 XBPS_ARCH=$BASE_ARCH $XBPS_INSTALL_CMD -r $ROOTFS ${XBPS_REPOSITORY} -S
 $XBPS_INSTALL_CMD -r $VOIDHOSTDIR $XBPS_REPOSITORY -S
 
-_linux_series=$(XBPS_ARCH=$BASE_ARCH $XBPS_QUERY_CMD -r $ROOTFS ${XBPS_REPOSITORY:=-R} -x linux)
-KERNELVERSION=$(XBPS_ARCH=$BASE_ARCH $XBPS_QUERY_CMD -r $ROOTFS ${XBPS_REPOSITORY:=-R} -p pkgver ${_linux_series})
-KERNELVERSION=$($XBPS_UHELPER_CMD getpkgversion $KERNELVERSION)
+_linux_series=$(XBPS_ARCH=$BASE_ARCH $XBPS_QUERY_CMD -r $ROOTFS ${XBPS_REPOSITORY:=-R} -x linux|head -1)
+_kver=$(XBPS_ARCH=$BASE_ARCH $XBPS_QUERY_CMD -r $ROOTFS ${XBPS_REPOSITORY:=-R} -p pkgver ${_linux_series})
+KERNELVERSION=$($XBPS_UHELPER_CMD getpkgversion ${_kver})
 
 : ${OUTPUT_FILE="void-live-${BASE_ARCH}-${KERNELVERSION}-$(date +%Y%m%d).iso"}