cmd/nixbuild: rename to nix-tool

.gitignore

@@ -5,7 +5,7 @@
 *.so
 *.dylib
 *.pkg
-/nixbuild
+/nix-tool
 
 # Test binary, built with `go test -c`
 *.test

cmd/nix-tool/main.go

@@ -31,9 +31,8 @@ func main() {
 		flagVerbose bool
 		flagJSON    bool
 	)
-	c := command.New(os.Stderr, log.Printf, "nixbuild", func(args []string) error {
+	c := command.New(os.Stderr, log.Printf, "nix-tool", func(args []string) error {
 		log.SetFlags(0)
-		log.SetPrefix("nixbuild: ")
 
 		var stderr io.Writer
 		if flagVerbose {