refactor and lint commands, make consistent

Still pending test coverage for most of these, but wanted to give them a
clean sweep to get the "load-all-commands" tests passing.

The following changes are in here:

- All commands now have a `completion()` method and a usage string that
  uses the same `usage` util consistently.
- The `silent` argument to many commands has been removed.
- All commands use the `cmd = ${cmd}(args).then(() => cb()).catch(cb)`
  pattern consistently.

Full test coverage for all commands is still lacking, and will have to
be done prior to the GA v7 release.

1 files changed, 2 insertions, 2 deletions

diff --git a/test/lib/pack.js b/test/lib/pack.js
index 33570ccf3..e479dd14c 100644
--- a/test/lib/pack.js
+++ b/test/lib/pack.js
@@ -49,7 +49,7 @@ test('should pack given directory', (t) => {
     }
   })
 
-  pack([testDir], false, () => {
+  pack([testDir], () => {
     t.end()
   })
 })
@@ -76,7 +76,7 @@ test('should log pack contents', (t) => {
     }
   })
 
-  pack([], true, () => {
+  pack([], () => {
     t.end()
   })
 })