Add ng_send_fn() error handeling inside ng_con_nodes(). Without it some errors may left unnoticed and unhandeled that will lead to hooks left in half-connected state.
Add ng_send_fn() error handeling inside ng_con_nodes().
Without it some errors may left unnoticed and unhandeled
that will lead to hooks left in half-connected state.

Reviewed by:	julian@
Approved by:	re (kensmith), glebius (mentor)

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