s3cmd: 1.6.1 -> 2.0.1

Semi-automatic update. These checks were performed:

- built on NixOS
- ran `/nix/store/pfd3ki3ylyx10vjkg99wjzhjs004iwb9-s3cmd-2.0.1/bin/.s3cmd-wrapped -h` got 0 exit code
- ran `/nix/store/pfd3ki3ylyx10vjkg99wjzhjs004iwb9-s3cmd-2.0.1/bin/.s3cmd-wrapped --help` got 0 exit code
- ran `/nix/store/pfd3ki3ylyx10vjkg99wjzhjs004iwb9-s3cmd-2.0.1/bin/.s3cmd-wrapped --version` and found version 2.0.1
- ran `/nix/store/pfd3ki3ylyx10vjkg99wjzhjs004iwb9-s3cmd-2.0.1/bin/.s3cmd-wrapped -h` and found version 2.0.1
- ran `/nix/store/pfd3ki3ylyx10vjkg99wjzhjs004iwb9-s3cmd-2.0.1/bin/.s3cmd-wrapped --help` and found version 2.0.1
- ran `/nix/store/pfd3ki3ylyx10vjkg99wjzhjs004iwb9-s3cmd-2.0.1/bin/s3cmd -h` got 0 exit code
- ran `/nix/store/pfd3ki3ylyx10vjkg99wjzhjs004iwb9-s3cmd-2.0.1/bin/s3cmd --help` got 0 exit code
- ran `/nix/store/pfd3ki3ylyx10vjkg99wjzhjs004iwb9-s3cmd-2.0.1/bin/s3cmd --version` and found version 2.0.1
- ran `/nix/store/pfd3ki3ylyx10vjkg99wjzhjs004iwb9-s3cmd-2.0.1/bin/s3cmd -h` and found version 2.0.1
- ran `/nix/store/pfd3ki3ylyx10vjkg99wjzhjs004iwb9-s3cmd-2.0.1/bin/s3cmd --help` and found version 2.0.1
- found 2.0.1 with grep in /nix/store/pfd3ki3ylyx10vjkg99wjzhjs004iwb9-s3cmd-2.0.1
- found 2.0.1 in filename of file in /nix/store/pfd3ki3ylyx10vjkg99wjzhjs004iwb9-s3cmd-2.0.1

cc "@spwhitt"