Change CRLF before batch flag prompt to a conditional new-line.

If a sysop wants a *blank* line before the batch flag prompt, they can put that (or a conditional blank line, even better) in their text.dat (BatchFlagPrompt). For now, I'm thinking no blank line before the prompt is better use of the screen.

src/sbbs3/listfile.cpp

@@ -472,7 +472,7 @@ int sbbs_t::batchflagprompt(smb_t* smb, file_t** bf, ulong* row, uint total
 		if(usrdir[ulib][udir]==smb->dirnum)
 			break;
 
-	CRLF;
+	cond_newline();
 	while(online) {
 		bprintf(text[BatchFlagPrompt]
 			,ulib+1