parse: fix a type mismatch in a test
parse: fix a type mismatch in a test

Cast a value to a string when comparing it to a string.

Signed-off-by: Nalin Dahyabhai <f562fcb2a0b898bf0be1afc867ea92325d8f825f@redhat.com>

TomSweeneyRedHat/buildah,TomSweeneyRedHat/buildah,nalind/buildah,rhatdan/buildah,rhatdan/buildah,projectatomic/buildah,nalind/buildah-1,nalind/buildah-1,nalind/buildah,projectatomic/buildah,rhatdan/buildah,projectatomic/buildah,TomSweeneyRedHat/buildah,nalind/buildah-1