cmd/utils, node/cli: fix spelling typos in --help flag descriptions (#19354)

Three typos in CLI `--help` flag `Usage` strings visible to all users
via `erigon --help`.

## Changes

- `cmd/utils/flags.go` — `HTTPDebugSingleFlag`: `printt` → `print`
- `cmd/utils/flags.go` — `RpcBatchConcurrencyFlag`: `bach` → `batch`
- `node/cli/flags.go` — `PruneModeFlag`: `run onto` → `run on`

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<details>

<summary>Original prompt</summary>

> Fix spelling errors in `erigon --help` flag descriptions.
> 
> ## Context
> Users report spelling mistakes in the CLI help output when running
`./build/bin/erigon --help`.
> 
> ## Required changes
> Update user-facing flag `Usage` strings to correct spelling typos
(keep changes minimal; do not do broader rewrites).
> 
> Specifically:
> 1. In `cmd/utils/flags.go`, update the `HTTPDebugSingleFlag` usage
string to change `printt` -> `print`.
> 2. In `cmd/utils/flags.go`, update the `RpcBatchConcurrencyFlag` usage
string to change `bach` -> `batch`.
> 3. In `node/cli/flags.go`, update the `PruneModeFlag` usage string to
change `run onto` -> `run on`.
> 
> ## Acceptance criteria
> - `./build/bin/erigon --help` no longer contains the above typos.
> - Changes are limited to spelling-only updates in the relevant `Usage`
strings.
> - Build/tests (if any) continue to pass.
> 


</details>



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*This pull request was created from Copilot chat.*
>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: bloxster <40316187+bloxster@users.noreply.github.com>

Author: Copilot

cmd/utils/flags.go

@@ -358,7 +358,7 @@ var (
 	}
 	RpcBatchConcurrencyFlag = cli.UintFlag{
 		Name:  "rpc.batch.concurrency",
-		Usage: "Does limit amount of goroutines to process 1 batch request. Means 1 bach request can't overload server. 1 batch still can have unlimited amount of request",
+		Usage: "Does limit amount of goroutines to process 1 batch request. Means 1 batch request can't overload server. 1 batch still can have unlimited amount of request",
 		Value: 2,
 	}
 	RpcStreamingDisableFlag = cli.BoolFlag{
@@ -382,7 +382,7 @@ var (
 	HTTPDebugSingleFlag = cli.BoolFlag{
 		Name:    "http.dbg.single",
 		Aliases: []string{"rpc.dbg.single"},
-		Usage:   "Allow pass HTTP header 'dbg: true' to printt more detailed logs - how this request was executed",
+		Usage:   "Allow pass HTTP header 'dbg: true' to print more detailed logs - how this request was executed",
 	}
 	DBReadConcurrencyFlag = cli.IntFlag{
 		Name:  "db.read.concurrency",

node/cli/flags.go

@@ -76,7 +76,7 @@ var (
 
 	PruneModeFlag = cli.StringFlag{
 		Name: "prune.mode",
-		Usage: `Choose a pruning preset to run onto. Available values: "full", "archive", "minimal", "blocks".
+		Usage: `Choose a pruning preset to run on. Available values: "full", "archive", "minimal", "blocks".
 				full: Keep only necessary blocks and latest state,
 				blocks: Keep all blocks but not the state history,
 				archive: Keep the entire state history and all blocks,