packages: dependencies: fix is_base_distro argument

This was broken from the start in the commit
fe28bc3c82 ("dependencies: move into
single package.").

Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>
Acked-by: Adrien 'neox' Bourmault <neox@gnu.org>

resources/packages/dependencies/install

@@ -31,6 +31,7 @@ usage()
 
 is_base_distro()
 {
+    distro="$1"
     grep "ID=${distro}" /etc/os-release > /dev/null && return ${true}
     grep "ID_LIKE=${distro}" /etc/os-release > /dev/null && return ${true}
     return ${false}