bgpd: fix use single whitespace when displaying flowspec entries

There is an extra space in the 'Displayed' line of show bgp command,
that should not be present.
Fix this by being consistent with the output of the other address
families.

Fixes: ("a1baf9e84f71") bgpd: Use single whitespace when displaying show bgp summary
Signed-off-by: Philippe Guibert <[email protected]>
(cherry picked from commit 561deba)

bgpd/bgp_flowspec_vty.c

@@ -441,7 +441,7 @@ int bgp_show_table_flowspec(struct vty *vty, struct bgp *bgp, afi_t afi,
 	}
 	if (total_count && !use_json)
 		vty_out(vty,
-			"\nDisplayed  %ld flowspec entries\n",
+			"\nDisplayed %ld flowspec entries\n",
 			total_count);
 	return CMD_SUCCESS;
 }