Update src/bin/cratesfyi.rs

Co-Authored-By: Joshua Nelson <joshua@yottadb.com>

Author: pietroalbini

src/bin/cratesfyi.rs

@@ -115,7 +115,9 @@ pub fn main() {
             .about("Updates search index"))
             .subcommand(SubCommand::with_name("delete-crate")
                 .about("Removes a whole crate from the database")
-                .arg(Arg::with_name("CRATE_NAME").help("Name of the crate to delete"))))
+                .arg(Arg::with_name("CRATE_NAME")
+                    .takes_value(true)
+                    .help("Name of the crate to delete"))))
         .subcommand(SubCommand::with_name("queue")
             .about("Interactions with the build queue")
             .subcommand(SubCommand::with_name("add")