tree 9fbbecedf50ee4ff28e994855fb7cbf077a11319
parent 4a31ffa2f0097d96201f80305a0495c57552f0ad
author Neels Hofmeyr <neels@hofmeyr.de> 1505858041 +0200
committer Neels Hofmeyr <neels@hofmeyr.de> 1505861853 +0200

fix vty regression: empty parent node

The recent exit-by-indent patch breaks a VTY case where a node is entered but
directly followed by a sibling or ancestor without listing any child nodes.
Regression introduced by I24cbb3f6de111f2d31110c3c484c066f1153aac9.

An example is a common usage in osmo-bts, where 'phy N' / 'instance N' is a
parent node that is commonly left empty:

	phy 0
	 instance 0
	bts 0
	 band 1800

Before this patch, this case produces the error:

	There is no such command.
	Error occurred during reading the below line:
	bts 0

Fix indentation parsing logic in command.c to accomodate this case.

Add a unit test for empty parent node.

Change-Id: Ia0880a17ae55accb092ae8585cc3a1bec9986891