`tt start -i` leads to the impossibility of the `tt clean`

[askalt]

1. Start an instance using tt start -i. Logs directory is not created. As I see, it is done intentionally here:

   tt/cli/running/running.go

   Line 754 in 2eba9ef

   for _, dataDir := range [...]string{inst.WalDir, inst.VinylDir, inst.MemtxDir, inst.RunDir} {

2. Stop the instance.
3. Try to clean files with tt clean -f and got error: ... var/log/instance1: no such file or directory, as clean assumes that all directories exist when collects files to clean.

[askalt]

Possible fix (idk, maybe clean itself should be fixed to not consider non-existing directories):

diff --git a/cli/running/running.go b/cli/running/running.go
index 373f88d..44e4e29 100644
--- a/cli/running/running.go
+++ b/cli/running/running.go
@@ -751,10 +751,8 @@ func FillCtx(cliOpts *config.CliOpts, cmdCtx *cmdcontext.CmdCtx,
 func RunInstance(ctx context.Context, cmdCtx *cmdcontext.CmdCtx, inst InstanceCtx,
        stdOut, stdErr io.Writer,
 ) error {
-       for _, dataDir := range [...]string{inst.WalDir, inst.VinylDir, inst.MemtxDir, inst.RunDir} {
-               if err := util.CreateDirectory(dataDir, defaultDirPerms); err != nil {
-                       return err
-               }
+       if err := createInstanceDataDirectories(inst); err != nil {
+               return fmt.Errorf("failed to create a directory: %s", err)
        }
 
        logger := ttlog.NewCustomLogger(stdOut, "", 0)