Handle out-of-bound case where IOS splits lines

[dagwieers]

ISSUE TYPE

• Bugfix Pull Request

COMPONENT

templates/cisco_ios_show_cdp_neighbors.template

SUMMARY

So the output we got was this, which was not handled with the current textfsm template.

Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
                  S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone,
                  D - Remote, C - CVTA, M - Two-port Mac Relay
Device ID        Local Intrfce     Holdtme    Capability  Platform  Port ID
switch01.example.com
                 Ten 2/2/8         179             R S I  WS-C4510R Ten 6/1
switch02.example.com
                 Ten 1/2/8         169             R S I  WS-C4510R Ten 5/1

[itdependsnetworks]

@dagwieers can you update the tests to reflect this use case?

Also:

I'm trying to make it a standard moving forward to add these to each template:

  ^\s+$$
  ^.* -> Error "LINE NOT FOUND"

This way if something has not known, it will fail. Having a few use cases where not finding issues that happen around 1% of the time, and hard to realize there is even an issue. Do you mind adding?

[jmcgill298]

#235