Removes hash rockets from references.

Occasionally people get confused about how to write Arrays.

##  Validation

Before fix:

- [ ] Affected modules appear to have no references when the following commands are run:

`./msfcli exploit/multi/http/processmaker_exec S`
`./msfcli exploit/unix/webapp/kimai_sqli S`
`./msfcli exploit/unix/webapp/webtester_exec S`

After fix:

- [ ] Affected modules now have references:

`./msfcli exploit/multi/http/processmaker_exec S`
`./msfcli exploit/unix/webapp/kimai_sqli S`
`./msfcli exploit/unix/webapp/webtester_exec S`

When landing this, please use the magic words on the merge commit:

````
[FixRM #8776]
````

...since this fixes https://dev.metasploit.com/redmine/issues/8776