Do not print useless empty line after list of applets

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/libbb/appletlib.c b/libbb/appletlib.c
index bb7e905..9425c7b 100644
--- a/libbb/appletlib.c
+++ b/libbb/appletlib.c
@@ -777,7 +777,7 @@
 			col += len2;
 			a += len2 - 1;
 		}
-		full_write2_str("\n\n");
+		full_write2_str("\n");
 		return 0;
 	}