Add regression tests for jot(1).

Adapted from FreeBSD's test suite by attila () stalphonsos ! com.

Minor tweaks:
* make tests work properly with 'make obj' and setting VERBOSE
* add 10 tests checking some examples in our man page
* disable the dddd test for now since it loops forever

Besides dddd, the following five tests fail: dhhd dhhd2 wp3 wp4 wp5
Suggested fixes for these are on tech@

Many thanks to attila for doing the hard work!

1 files changed, 50 insertions, 0 deletions

diff --git a/regress/usr.bin/jot/regress.hdhh.out b/regress/usr.bin/jot/regress.hdhh.out
new file mode 100644
index 00000000000..d06ebfa3015
--- /dev/null
+++ b/regress/usr.bin/jot/regress.hdhh.out
@@ -0,0 +1,50 @@
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