bm-client vault parameters are not clear

[acalatrava]

Describe the bug
While trying to create a new vault on a specified file the parameters will induce to an error

To Reproduce

$ ./bm-client --vault test.vault vault init

Vault already exists. Use --path to create a new vault on a specific path.

$ ./bm-client --vault test.vault vault init --path .

Please enter your new vault password:
Please retype your new vault password:
error: cannot create vault:  rename . ..backup: device or resource busy

However this works

$ ./bm-client  vault init --path test.vault

Please enter your new vault password:
Please retype your new vault password:
successfully created a new vault at  test.vault

Expected behavior
Either --path or --vault should be used as parameter but not both

[jaytaph]

@acalatrava would --vault-path be a more consistent name in these cases?

[acalatrava]

Yeah, I think so. The thing is that when init one parameter is used and when edit the other one. So this should be addressed.

[jaytaph]

It seems that --path isn't an actual parameter to begin with. Only --vault is used. This is changed to --vault-path to make it less ambigius