Angus McLeod 6c41b54b2e FIX: create tmp if it doesn't exist when creating tmp/pids
I get this error if I stop a dev server, ``rm -rf tmp`` and start it again:
```
`mkdir': No such file or directory @ dir_s_mkdir - /Users/angusmcleod/discourse/discourse/tmp/pids (Errno::ENOENT)
```
This fixes it.

See: f3549291a3 (diff-26ac62db6c6a4582de3bbf2615790c23R22)
2018-08-08 14:49:09 +10:00
..
2018-06-01 11:24:32 +08:00
2018-08-07 17:13:47 +10:00
2018-02-26 10:29:25 +11:00
2017-07-28 10:20:09 +09:00
2017-09-29 08:19:35 +08:00