CLI: Add fee-payer parame to stake-split subcommand (#8201)

automerge

cli/src/cli.rs

@@ -313,6 +313,7 @@ pub enum CliCommand {
         split_stake_account: KeypairEq,
         seed: Option<String>,
         lamports: u64,
+        fee_payer: Option<SigningAuthority>,
     },
     ShowStakeHistory {
         use_lamports_unit: bool,
@@ -1612,6 +1613,7 @@ pub fn process_command(config: &CliConfig) -> ProcessResult {
             split_stake_account,
             seed,
             lamports,
+            ref fee_payer,
         } => process_split_stake(
             &rpc_client,
             config,
@@ -1625,6 +1627,7 @@ pub fn process_command(config: &CliConfig) -> ProcessResult {
             split_stake_account,
             seed,
             *lamports,
+            fee_payer.as_ref(),
         ),
         CliCommand::ShowStakeAccount {
             pubkey: stake_account_pubkey,
@@ -3058,6 +3061,7 @@ mod tests {
             split_stake_account: split_stake_account.into(),
             seed: None,
             lamports: 1234,
+            fee_payer: None,
         };
         let signature = process_command(&config);
         assert_eq!(signature.unwrap(), SIGNATURE.to_string());