pscp: fix another newline problem in output.

In commit 54b300f15, I managed to set the progress_bar_displayed flag
just _after_, rather than before, the call to abandon_progress_bar
that moves to the new line once the file has finished copying. So in
the case where a file is so small that the very first displaying of
the transfer statistics is already at 100% completion, the flag
wouldn't be set when abandon_progress_bar checked for it, and a
newline still wouldn't be printed.

pscp.c

@@ -576,11 +576,11 @@ static void print_stats(const char *name, uint64 size, uint64 done,
 	    printf("%*s", prev_stats_len - len, "");
 	prev_stats_len = len;
 
+        progress_bar_displayed = TRUE;
+
 	if (uint64_compare(done, size) == 0)
             abandon_progress_bar();
 
-        progress_bar_displayed = TRUE;
-
 	fflush(stdout);
     }