command: add library command attribute for libosmo-abis

Change-Id: I0efc57f2cb54798ba207ae6fef9af4771d96bfa9
Related: SYS#4937, OS#1601
diff --git a/tests/vty/vty_transcript_test.vty b/tests/vty/vty_transcript_test.vty
index b626f3d..2c618d8 100644
--- a/tests/vty/vty_transcript_test.vty
+++ b/tests/vty/vty_transcript_test.vty
@@ -91,6 +91,8 @@
     @  This command applies on VTY node exit
   Library specific attributes:
     A  This command applies on ASP restart
+    I  This command applies on IPA link establishment
+    L  This command applies on E1 line update
   Application specific attributes:
     u  Unbelievable: not able to be believed; unlikely to be true
     m  Magnificent: impressively beautiful, elaborate, or extravagant