Auto merge of #2153 - carlosgaldino:cg-fix-uninstall, r=alexcrichton
authorbors <bors@rust-lang.org>
Thu, 19 Nov 2015 18:32:10 +0000 (18:32 +0000)
committerbors <bors@rust-lang.org>
Thu, 19 Nov 2015 18:32:10 +0000 (18:32 +0000)
commit9b69994a23a643b61bddae84bb6bfce5db5d7338
treec9fe1697956dcd499b125bfcf88b3dfaa6451131
parentfb73974c8fdd2684c2c5860c495a3c939b2e604f
parentfa6177ae0e3efd781ea500ab77698f9ad149934f
Auto merge of #2153 - carlosgaldino:cg-fix-uninstall, r=alexcrichton

With this patch users can type `cargo help uninstall` or `cargo
uninstall -h` and it will display the `USAGE` message as it was supposed to.

Before the patch the command would display an error message about
invalid arguments.

Fixes #2138.

I also updated the man page.