The added test demonstrates the issue. If a did not end with whitespace
it was skipped.
Reported-by: Fredrik Lysén <fredrik.lysen@uadm.uu.se>
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
For reasons see excellent paper 'Recursive Make Considered Harmful' by
Peter Miller.
References: http://miller.emu.id.au/pmiller/books/rmch/
Signed-off-by: Sami Kerola <kerolasa@iki.fi>