Rename 'nix store sign-paths' to 'nix store sign'

src/nix/key-generate-secret.md

@@ -12,7 +12,7 @@ R""(
 
   ```console
   # nix build nixpkgs#hello
-  # nix store sign-paths --key-file ./secret-key --recursive ./result
+  # nix store sign --key-file ./secret-key --recursive ./result
   ```
 
   Finally, we can verify the store paths using the corresponding

src/nix/main.cc

@@ -129,7 +129,7 @@ struct NixArgs : virtual MultiCommand, virtual MixCommonArgs
         {"make-content-addressable", {"store", "make-content-addressable"}},
         {"optimise-store", {"store", "optimise"}},
         {"ping-store", {"store", "ping"}},
-        {"sign-paths", {"store", "sign-paths"}},
+        {"sign-paths", {"store", "sign"}},
         {"to-base16", {"hash", "to-base16"}},
         {"to-base32", {"hash", "to-base32"}},
         {"to-base64", {"hash", "to-base64"}},

src/nix/sigs.cc

@@ -92,11 +92,11 @@ struct CmdCopySigs : StorePathsCommand
 
 static auto rCmdCopySigs = registerCommand2<CmdCopySigs>({"store", "copy-sigs"});
 
-struct CmdSignPaths : StorePathsCommand
+struct CmdSign : StorePathsCommand
 {
     Path secretKeyFile;
 
-    CmdSignPaths()
+    CmdSign()
     {
         addFlag({
             .longName = "key-file",
@@ -140,7 +140,7 @@ struct CmdSignPaths : StorePathsCommand
     }
 };
 
-static auto rCmdSignPaths = registerCommand2<CmdSignPaths>({"store", "sign-paths"});
+static auto rCmdSign = registerCommand2<CmdSign>({"store", "sign"});
 
 struct CmdKeyGenerateSecret : Command
 {