William A. Kennington IIIandEelco Dolstra
0705d04dfa
The call to nix-env expects a string which represents how old the derivations are or just "old" which means any generations other than the current one in use. Currently nix-collect-garbage passes an empty string to nix-env when using the -d option. This patch corrects the call to nix-env such that it follows the old behavior.
Nix is a purely functional package manager. For installation and usage instructions, please read the manual, which can be found in `docs/manual/manual.html', and additionally at the Nix website at <http://nixos.org/>. Acknowledgments This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit (http://www.OpenSSL.org/).