Test 85 fails because LINENO=; fails in the 'sh'

[MikeFultonDev]

This can be fixed by changing the code to do LINENO=0; (it is just being unset later) or to skip the test.
Manual run of this test with LINENO=0 had the test pass

[jshimoda9323]

Looks like this PR fixed this issue.
#18

[jshimoda9323]

nevermind my last comment, the problem persists but is for test case 85 instead.

[jshimoda9323]

The root of the problem here is that shell (/bin/sh) on z/OS Unix does not allow LINENO=; nor does it allow LINENO='';. The envar LINENO specifically does not allow assignments to nothing, nor to zero length strings! (Note in general this is allowed for other shell variables).

[MikeFultonDev]

@jshimoda9323 can you try running this test under 'bash' to see if it passes?