Enable history test cases

Enable history test cases

Updated test case history_001_pos.ksh so it can run in tree.  The
original test case assumed /usr/sbin/zfs and /usr/sbin/zpool were
the only valid locations for these utilities.  The same modification
has already been made too history_common.kshlib.

The only other failing test case was history_010_pos and that was
the result of the ":linux" suffix not being appended when checking
the long output in the test case.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #4882