test_vars: add extra spaces around !=
test_vars: add extra spaces around !=

sh is picky about space, and without it the last part
of the condition always evaluates to true.

git-svn-id: ae38cf1093b87151f738d2b2220cac7742ad2e55@1046 64e312b2-a51f-0410-8e61-82d0ca0eb02a

lubosz/check,lubosz/check,lubosz/check,lubosz/check