Fix map drawing commands to report bad unit arguments

Before, they failed without explanation when they interpreted the
argument as unit number, but the player didn't own that unit.

diff --git a/src/lib/subs/maps.c b/src/lib/subs/maps.c
index 67b40b74873afa27ae92fdc730aacc12f97e45df..fb63031dbe8be51119cb52cd4960b4d63fa42d20 100644 (file)
--- a/src/lib/subs/maps.c
+++ b/src/lib/subs/maps.c
@@ -92,8 +92,10 @@ do_map(int bmap, int unit_type, char *arg, char *map_flags_arg)
            return RET_SYN;
        break;
     default:
-       if (unit_map(unit_type, atoi(arg), &ns, &origin) < 0)
+       if (unit_map(unit_type, atoi(arg), &ns, &origin) < 0) {
+           pr("No such %s\n", ef_nameof(unit_type));
            return RET_FAIL;
+       }
     }
 
     map_flags = parse_map_flags(bmap, map_flags_arg);