configure: use test -z whenever possible
authorEmil Velikov <emil.l.velikov@gmail.com>
Tue, 11 Feb 2014 14:47:37 +0000 (14:47 +0000)
committerEmil Velikov <emil.l.velikov@gmail.com>
Tue, 18 Feb 2014 00:00:23 +0000 (00:00 +0000)
commit8015ffeea13a1c2b7085b243a56cb6ef8982afb2
tree7dee39769bc7019739b8e743a5bcf73d46e8f01c
parentee55500c22a000d95ef4e5855b150f35ea0b5bba
configure: use test -z whenever possible

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
configure.ac