fix: Fix offline flag description. (#9685)

Co-authored-by: Amaury <1293565+amaurym@users.noreply.github.com>

client/flags/flags.go

@@ -106,7 +106,7 @@ func AddTxFlagsToCmd(cmd *cobra.Command) {
 	cmd.Flags().StringP(FlagBroadcastMode, "b", BroadcastSync, "Transaction broadcasting mode (sync|async|block)")
 	cmd.Flags().Bool(FlagDryRun, false, "ignore the --gas flag and perform a simulation of a transaction, but don't broadcast it")
 	cmd.Flags().Bool(FlagGenerateOnly, false, "Build an unsigned transaction and write it to STDOUT (when enabled, the local Keybase is not accessible)")
-	cmd.Flags().Bool(FlagOffline, false, "Offline mode (does not allow any online functionality")
+	cmd.Flags().Bool(FlagOffline, false, "Offline mode (does not allow any online functionality)")
 	cmd.Flags().BoolP(FlagSkipConfirmation, "y", false, "Skip tx broadcasting prompt confirmation")
 	cmd.Flags().String(FlagKeyringBackend, DefaultKeyringBackend, "Select keyring's backend (os|file|kwallet|pass|test|memory)")
 	cmd.Flags().String(FlagSignMode, "", "Choose sign mode (direct|amino-json), this is an advanced feature")