Fix short flags without whitespace, e.g:
zgrep -wefoo test
Fix multiple -e flags:
zgrep -e foo -e xxx test
Previously only the last pattern would be used.
Clean up possible leading blank in ${grep_args}.
Update comment: 2.51 -> 2.6.0
Add a test case for the last known zgrep wrapper issue: recursion
(-r) not implemented.
Normally the clnt_rc.c (reconnect layer) would
do a CLSET_TCP_DDP and the so_setsockopt()
would be done for CLSET_TCP_DDP in clnt_vc.c
and ignored in clnt_dg.c.
I've never been much of an object oriented guy,
but the Sun folk loved these layers.