Add missing license info and file for package 'attr'
[Peter: change to '+' version of licenses]
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
ATTR_SITE = http://download.savannah.gnu.org/releases/attr
ATTR_INSTALL_STAGING = YES
ATTR_CONF_OPT = --enable-gettext=no
+ATTR_LICENSE = GPLv2+ LGPGv2.1+
+ATTR_LICENSE_FILES = doc/COPYING doc/COPYING.LGPL
# While the configuration system uses autoconf, the Makefiles are
# hand-written and do not use automake. Therefore, we have to hack