[Bug 1303793] [NEW] helpers/sh/net.sh function ch_get_ip doesn't works for CNAME records

[Jorge Niedbalski]

Public bug reported:

[Impact]
* The function ch_get_ip() located on helpers/sh/net.sh  function doesn't works for hosts that resolves to CNAME entries.
* This causes that any charm using this helper function fails with unexpected results.

[Test Case]
$ source helpers/sh/net.sh
$ ch_get_ip www.google.com 
-  nothing returned

** Affects: charm-tools (Ubuntu)
     Importance: Undecided
     Assignee: Jorge Niedbalski (niedbalski)
         Status: New

** Changed in: charm-tools (Ubuntu)
     Assignee: (unassigned) => Jorge Niedbalski (niedbalski)

** Branch linked: lp:~niedbalski/ubuntu/precise/charm-tools/fix-for-
cname-lookups

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https://bugs.launchpad.net/bugs/1303793

Title:
  helpers/sh/net.sh function ch_get_ip doesn't works for CNAME records

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