Add error pattern checks for some TAP tests for non-existing objects

Add error pattern checks for some TAP tests for non-existing objects

Some tests are updated to use command_fails_like(), gaining a check for
the error output generated.  The test changed in pg_amcheck has come up
after noticing that an incorrect option name still made the test to
pass, while the command failed.  The three other tests changed in
src/bin/scripts/ have been noticed by me, in passing.

Author: Dagfinn Ilmari Mannsåker, Michael Paquier
Discussion: https://postgr.es/m/[email protected]