add -4, update -T, fix shellcheck warnings #18
Merged
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Added
-4to change indenting from 2 spaces to 4. Now-Twillunexpand(1)tabs using 2 or 4 spaces according to use of-4or not.Added missing "c", removed unused "A" in 1st line of usage. Order usage option lines according to 1st line of usage.
Removed trailing whitespace.
Added missing "*)" final case switch options.
Fixed a number of shellcheck warnings.
Changed VERSION from "0.0.21" to "0.0.22".