self-test: Add test for DIST=".eln"
There's never a dist-git commit with eln data so there's no self-test data
generated for DIST=".eln". To avoid any future errors with DIST=".eln",
add a test to verify that it results in BUILD_TARGET value being set to
"eln".
Signed-off-by: Prarit Bhargava prarit@redhat.com
Edited by Prarit Bhargava