cbc: make cbc cat more consistent with newlines and values
cbc: make cbc cat more consistent with newlines and values

Most values do not have newlines. We should still take care to clear the
terminal in such a scenario.

Change-Id: Idee48870637744717f11644d1e5e39f9960509a8
Reviewed-on: http://review.couchbase.org/42185
Reviewed-by: Sergey Avseyev <87f6d5e4fd3644c3c20800cde7fd3ad1569370b3@gmail.com>
Tested-by: Mark Nunberg <e7d42768707bf23038325b0b68d4b577e5f6064a@haskalah.org>

signmotion/libcouchbase,PureSwift/libcouchbase,avsej/libcouchbase,kojiromike/libcouchbase,senthilkumaranb/libcouchbase,kojiromike/libcouchbase,avsej/libcouchbase,couchbase/libcouchbase,couchbase/libcouchbase,PureSwift/libcouchbase,couchbase/libcouchbase,mnunberg/libcouchbase,maxim-ky/libcouchbase,mnunberg/libcouchbase,kojiromike/libcouchbase,kojiromike/libcouchbase,signmotion/libcouchbase,signmotion/libcouchbase,avsej/libcouchbase,avsej/libcouchbase,senthilkumaranb/libcouchbase,senthilkumaranb/libcouchbase,mody/libcouchbase,maxim-ky/libcouchbase,signmotion/libcouchbase,avsej/libcouchbase,couchbase/libcouchbase,maxim-ky/libcouchbase,couchbase/libcouchbase,couchbase/libcouchbase,mody/libcouchbase,mnunberg/libcouchbase,mody/libcouchbase,couchbase/libcouchbase,avsej/libcouchbase,PureSwift/libcouchbase,maxim-ky/libcouchbase,senthilkumaranb/libcouchbase,PureSwift/libcouchbase,mnunberg/libcouchbase,mnunberg/libcouchbase,avsej/libcouchbase,mody/libcouchbase