Minor updates to titles and descriptions

Fixes for:

````
modules/auxiliary/gather/apache_rave_creds.rb - msftidy check passed
modules/exploits/linux/http/dlink_upnp_exec_noauth.rb - msftidy check passed
modules/exploits/windows/browser/apple_quicktime_rdrf.rb - msftidy check passed
modules/exploits/windows/fileformat/apple_quicktime_rdrf.rb - msftidy check passed
modules/exploits/windows/http/hp_mpa_job_acct.rb - msftidy check passed
````

Mostly just word choice, really.