Fixed cli error

Author: tmrlvi

plugins/cuda/src/cli.rs

@@ -50,7 +50,7 @@ pub struct CudaOpt {
     )]
     pub cuda_no_blocking_sync: bool,
     #[clap(
-        long = "nonce-gen",
+        long = "cuda-nonce-gen",
         help = "The random method used to generate nonces. Options: (i) xoshiro - each thread in GPU will have its own random state, creating a (pseudo-)independent xoshiro sequence (ii) lean - each GPU will have a single random nonce, and each GPU thread will work on nonce + thread id.",
         default_value = "lean"
     )]

plugins/opencl/src/cli.rs

@@ -44,7 +44,7 @@ pub struct OpenCLOpt {
     )]
     pub experimental_amd: bool,
     #[clap(
-        long = "nonce-gen",
+        long = "opencl-nonce-gen",
         help = "The random method used to generate nonces. Options: (i) xoshiro (ii) lean",
         long_help = "The random method used to generate nonces. Options: (i) xoshiro - each thread in GPU will have its own random state, creating a (pseudo-)independent xoshiro sequence (ii) lean - each GPU will have a single random nonce, and each GPU thread will work on nonce + thread id.",
         default_value = "lean"