allow users to delete jobs with cups printing backend

The changes the name of the job passed off to cups
from "Test Page" to "smbprn.00000033 Test Page" so that
we can get the smb jobid back from lpq.  Working on bug
770.
(This used to be commit 5979f4d645)

source3/printing/print_cups.c

@@ -682,6 +682,7 @@ cups_job_submit(int snum, struct printjob *pjob)
 	cups_lang_t	*language;	/* Default language */
 	char		uri[HTTP_MAX_URI]; /* printer-uri attribute */
 	char 		*clientname; 	/* hostname of client for job-originating-host attribute */
+	pstring		new_jobname;
 
 	DEBUG(5,("cups_job_submit(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
 
@@ -744,8 +745,11 @@ cups_job_submit(int snum, struct printjob *pjob)
 	             "job-originating-host-name", NULL,
 		      clientname);
 
+        pstr_sprintf(new_jobname,"%s%.8u %s", PRINT_SPOOL_PREFIX, 
+		(unsigned int)pjob->smbjob, pjob->jobname);
+
 	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "job-name", NULL,
-        	     pjob->jobname);
+        	     new_jobname);
 
        /*
 	* Do the request and get back a response...

source3/printing/printing.c

@@ -2063,6 +2063,8 @@ BOOL print_job_end(int snum, uint32 jobid, BOOL normal_close)
 		return True;
 	}
 
+	pjob->smbjob = jobid;
+
 	ret = (*(current_printif->job_submit))(snum, pjob);
 
 	if (ret)