Convert Non-Environment variables to lowercase #14.

The test fails. Why?
```
% ./000-basic.t
ok 1 - version check
not ok 2 - initial post with -m
not ok 3 - title check in initial post
not ok 4 - title check in subsequent post:
not ok 5 - title check in subsequent post:
not ok 6 - title check in subsequent post:
not ok 7 - title check in subsequent post:
not ok 8 - title check in subsequent post:
not ok 9 - initial post with -b
not ok 10 - title check in initial post
not ok 11 - title check in subsequent post:
not ok 12 - title check in subsequent post:
not ok 13 - title check in subsequent post:
not ok 14 - title check in subsequent post:
not ok 15 - title check in subsequent post:
1..15}}
```