fix: enable gentx `--keyring-dir` flag to take effect (#9574)

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## Description

Closes: #XXXX

The `--keyring-dir=xxx` flag was allowed by `appd gentx`, but wasn't actually used to search for key parameters.  On investigation, it appears that `gentx` only initialized the query-side of the client context, but the tx-side needed to be initialized since keys and signing were involved.

---

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CHANGELOG.md

@@ -59,6 +59,11 @@ Ref: https://keepachangelog.com/en/1.0.0/
 ### Improvements
 * (cli) [\#9593](https://github.com/cosmos/cosmos-sdk/pull/9593) Check if chain-id is blank before verifying signatures in multisign and error.
 
+### Bug Fixes
+
+* (x/genutil) [\#9574](https://github.com/cosmos/cosmos-sdk/pull/9575) Actually use the `gentx` client tx flags (like `--keyring-dir`)
+
+
 ## [v0.43.0-rc0](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.43.0-rc0) - 2021-06-25
 
 ### Features

x/genutil/client/cli/gentx.go

@@ -57,7 +57,7 @@ $ %s gentx my-key-name 1000000stake --home=/path/to/home/dir --keyring-backend=o
 		),
 		RunE: func(cmd *cobra.Command, args []string) error {
 			serverCtx := server.GetServerContextFromCmd(cmd)
-			clientCtx, err := client.GetClientQueryContext(cmd)
+			clientCtx, err := client.GetClientTxContext(cmd)
 			if err != nil {
 				return err
 			}