libsmbconf: testsuite: use POPT_COMMON_SAMBA instead of POPT_COMMON_CONFIGFILE

so we can for instance set the debug level on the command line.

Michael
(This used to be commit 94a1923462)

source3/lib/smbconf/testsuite.c

@@ -94,7 +94,7 @@ int main(int argc, const char **argv)
 	TALLOC_CTX *mem_ctx = talloc_stackframe();
 
 	struct poptOption long_options[] = {
-		POPT_COMMON_CONFIGFILE
+		POPT_COMMON_SAMBA
 		{0, 0, 0, 0}
 	};