test-env: require /proc to be mounted
fixes
@@ -110,7 +110,7 @@ _all_ tests (also those that are mostly designed for internal development)
you need to fulfil:
- Elektra must be installed (for gen + external test cases).
-- Mounted /dev (to have stdin and stdout for import & export test cases).
+- Mounted /dev and /proc (to have stdin and stdout for import & export test cases).
- A running dbus daemon (Either "system" or "session" daemon).
- `gpg2` or `gpg` binary must be available.
