Tidy the hwtrust tool's subcommand help text

Each subcommand should have a short description for the top-level help
and can optionally have more details in subsequent paragraphs for the
subcommand-specific help.

Clearly state that verify-dice-chain is a deprecated alias of dice-chain
in the help rather than duplicating the same description.

Test: atest --host hwtrust_cli_tests hwtrust_tests libhwtrust_tests
Change-Id: I6b139b393f1a4ac3fb92995ee483b37e4897e551
1 file changed
tree: 38323fe71a745630460ab4acccf3616951237dae
  1. fuzzing/
  2. gdb/
  3. remote_provisioning/
  4. sanitizer-status/
  5. CleanSpec.mk
  7. PREUPLOAD.cfg