[release-17.0] Fix typo for --cells flag help description in `Apply…

…RoutingRules` (vitessio#14721) (vitessio#14722)

Co-authored-by: vitess-bot[bot] <108069721+vitess-bot[bot]@users.noreply.github.com>

go/cmd/vtctldclient/command/routing_rules.go

@@ -148,7 +148,7 @@ func commandGetRoutingRules(cmd *cobra.Command, args []string) error {
 func init() {
 	ApplyRoutingRules.Flags().StringVarP(&applyRoutingRulesOptions.Rules, "rules", "r", "", "Routing rules, specified as a string.")
 	ApplyRoutingRules.Flags().StringVarP(&applyRoutingRulesOptions.RulesFilePath, "rules-file", "f", "", "Path to a file containing routing rules specified as JSON.")
-	ApplyRoutingRules.Flags().StringSliceVarP(&applyRoutingRulesOptions.Cells, "cells", "c", nil, "Limit the VSchema graph rebuildingg to the specified cells. Ignored if --skip-rebuild is specified.")
+	ApplyRoutingRules.Flags().StringSliceVarP(&applyRoutingRulesOptions.Cells, "cells", "c", nil, "Limit the VSchema graph rebuilding to the specified cells. Ignored if --skip-rebuild is specified.")
 	ApplyRoutingRules.Flags().BoolVar(&applyRoutingRulesOptions.SkipRebuild, "skip-rebuild", false, "Skip rebuilding the SrvVSchema objects.")
 	ApplyRoutingRules.Flags().BoolVarP(&applyRoutingRulesOptions.DryRun, "dry-run", "d", false, "Load the specified routing rules as a validation step, but do not actually apply the rules to the topo.")
 	Root.AddCommand(ApplyRoutingRules)