package/gettext-tiny: fix licensing

Fix the license list: it should be a space-separated list of files, it
is not a comma-separated list.

Fixes:
    http://autobuild.buildroot.org/results/74b/74be940e5757d18452b0eb97b9973c278be20345/

Add hashes for the license files while at it, and cleanup the hash file
as well.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Vadim Kochan <vadim4j@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/gettext-tiny/gettext-tiny.hash

@@ -1,5 +1,7 @@
 # Locally Computed:
 sha256 654dcd52f2650476c8822b60bee89c20a0aa7f6a1bf6001701eeacd71a9e388b  gettext-tiny-v0.3.1.tar.gz
+sha256 b57aa4fdc1c614c28d41c1e2d5c4090935964c5f86291ba7d1c99ffd1d698b34  LICENSE
+sha256 8ceb4b9ee5adedde47b31e975c1d90c73ad27b6b165a1dcd80c7c545eb65b903  extra/COPYING
 # From http://lists.gnu.org/archive/html/bug-gettext/2016-06/msg00008.html
-md5	df3f5690eaa30fd228537b00cb7b7590	gettext-0.19.8.1.tar.xz
-sha1	e0fe90ede22f7f16bbde7bdea791a835f2773fc9	gettext-0.19.8.1.tar.xz
+md5  df3f5690eaa30fd228537b00cb7b7590         gettext-0.19.8.1.tar.xz
+sha1 e0fe90ede22f7f16bbde7bdea791a835f2773fc9 gettext-0.19.8.1.tar.xz

package/gettext-tiny/gettext-tiny.mk

@@ -8,7 +8,7 @@ GETTEXT_TINY_VERSION = v0.3.1
 GETTEXT_TINY_SITE = $(call github,sabotage-linux,gettext-tiny,$(GETTEXT_TINY_VERSION))
 GETTEXT_TINY_LICENSE = MIT, GPL-3.0+ (extra gettext)
 GETTEXT_TINY_INSTALL_STAGING = YES
-GETTEXT_TINY_LICENSE_FILES = LICENSE, extra/COPYING
+GETTEXT_TINY_LICENSE_FILES = LICENSE extra/COPYING
 GETTEXT_TINY_OPTS = LIBINTL=NOOP
 
 GETTEXT_TINY_PROVIDES = gettext