Simplify commands for getting a random UUID
The Kernel can give you a random identifier out of the box, not need for hashing random bytes yourself. The UUIDs are randomized every time you read from the device:
```
% cat /proc/sys/kernel/random/uuid /proc/sys/kernel/random/uuid
```
RELNOTES: None
@@ -1490,7 +1490,7 @@ either to the terminal, or to additional log files.
<pre>
#!/bin/bash
echo "CURRENT_TIME $(date +%s)"
-echo "RANDOM_HASH $(cat /dev/urandom | head -c16 | md5sum 2>/dev/null | cut -f1 -d' ')"
+echo "RANDOM_HASH $(cat /proc/sys/kernel/random/uuid)"
echo "STABLE_GIT_COMMIT $(git rev-parse HEAD)"
echo "STABLE_USER_NAME $USER"
</pre>
