Addressing 0.6.pre4 release issues.

gold/errexit-confusion.sh: A confusing case in bash execution.  The
arena test is not failing properly.

- Minor update to release index
- Update OPy regtest checksums.

doc/release-index.md

@@ -95,9 +95,6 @@ Tree-shaking:

<!-- - [OHeap](benchmarks.wwz/oheap/).  Metrics for a possible AST encoding format. -->

NOTE: OHeap was broken in this release due to the removal of `bytearray`.  It
may be back in the future.

<!-- TODO: 
/src/                       annotated/cross-referenced source code
coverage/                  code coverage in Python and C

gold/errexit-confusion.sh

@@ -0,0 +1,21 @@
#!/bin/bash
#
# Usage:
#   ./if.sh <function name>

set -o nounset
set -o pipefail
set -o errexit

source test/common.sh

all-passing() {
  bin/osh --parse-and-print-arena foo
  echo $?
}

run-for-release() {
  run-other-suite-for-release example-failure all-passing
}

"$@"

opy/_regtest/dis-md5.golden.txt

@@ -152,7 +152,7 @@
  9430 55c117fa40d8b65b5caf648db19bab2c _tmp/regtest/osh/lex_test.pyc
  9584 9aa878a0ac026d6b54eaec9beefe2712 _tmp/regtest/opy/byterun/pyobj.pyc
  9874 6a7451da64ece36368705f98005046ac _tmp/regtest/core/legacy.pyc
  9926 235ebfb8f8a106983664f358ee4579cb _tmp/regtest/core/util.pyc
  9899 36e90a9e9ca4bb21552024ce2008ec57 _tmp/regtest/core/util.pyc
 10513 54a627997dabacb3c7c668b3b493d22e _tmp/regtest/runpy.pyc
 10560 5f30d8c99b518534251459804d8e6af2 _tmp/regtest/opy/opy_main.pyc
 10802 41b4b7f7c82b5975c2b78f9726befd1e _tmp/regtest/UserDict.pyc
@@ -167,7 +167,7 @@
 12881 93d533afff1007b9e56148b1a497770f _tmp/regtest/Lib/posixpath.pyc
 13140 ce4470353c560f336d111a4b2951871f _tmp/regtest/traceback.pyc
 13363 b5934d497a4e6129e97378eadce7ccec _tmp/regtest/_devbuild/gen/runtime_asdl.pyc
 13400 97f012af87503281dce2cabc951a235b _tmp/regtest/core/tdop.pyc
 13393 a307e6786fcfe2b0b90a6efc339f3863 _tmp/regtest/core/tdop.pyc
 13538 e92d94ff8a07d9db4b5371dca8a06443 _tmp/regtest/asdl/gen_cpp.pyc
 13604 4eefbd52c2231537fd5014f41f4b7486 _tmp/regtest/textwrap.pyc
 13677 2c60c3eff642e1e82b819d8fc206e3e5 _tmp/regtest/sre_compile.pyc
@@ -192,10 +192,10 @@
 21796 a74a8eb36df7fc545c32c5d701e38343 _tmp/regtest/tools/osh2oil.pyc
 22097 c6fd4a05622d86589afbfcf44ca35539 _tmp/regtest/sre_parse.pyc
 22612 ec17564464fe966907c394a15822e422 _tmp/regtest/string.pyc
 23100 bbdb014b37ecca3485e01533c1d15e0c _tmp/regtest/core/process.pyc
 23093 a2fc2b1e55a7225568da864b105a2508 _tmp/regtest/core/process.pyc
 23289 fd442b90b743fc6cb5285d56bed13c06 _tmp/regtest/core/completion.pyc
 23686 ae954683df01986a8d54a289703b79ca _tmp/regtest/opy/byterun/test_basic.pyc
 24100 0eeedc4798d57ee8e66eb31b25619923 _tmp/regtest/core/state.pyc
 24093 82b4f9450f775429de9b6bec6d610471 _tmp/regtest/core/state.pyc
 24635 eee5faed99a7118fd04b4f0ed8b56433 _tmp/regtest/core/word_eval.pyc
 25140 b04998c60e35a0a131b5a9168824a8c4 _tmp/regtest/asdl/asdl_.pyc
 28408 447bc9bfb31160b12f283fa79f3049a0 _tmp/regtest/os.pyc

scripts/release.sh

@@ -222,8 +222,7 @@ test-opy() {

  # NOTE: This is sensitive to Python 2.7.12 vs .13 vs .14.  Ideally we would
  # remove that.

  # TODO: There is no indication if this fails!
  # NOTE: There is no indication if this fails!
  ./regtest.sh compile > $out/regtest-compile.txt
  ./regtest.sh verify-golden > $out/regtest-verify-golden.txt

test/arena.sh

@@ -7,8 +7,7 @@ set -o nounset
set -o pipefail
set -o errexit

# TODO: Need include guard in test/common.sh!  I ran into this before.
#source test/common.sh  # for all-passing, etc.
source test/common.sh  # for run-other-suite-for-release
source test/wild-runner.sh  # For MANIFEST, etc.

_compare() {