[Impala-CR](cdh5-trunk) Modify gen_build_version.py to always output the right version

["Sailesh Mukil (Code Review)" <ge...@cloudera.org>]

Sailesh Mukil has uploaded a new change for review.

  http://gerrit.cloudera.org:8080/2529

Change subject: Modify gen_build_version.py to always output the right version
......................................................................

Modify gen_build_version.py to always output the right version

gen_build_version.py previously had a --noclean option which did not
overwrite the version info if it was already populated. However, if
we change the version of impala, it did not reflect in the shell as
well as in the common/version.h file. This was very misleading because
--noclean was used by default.

This change removes the --noclean option as time it takes to rewrite
the version info is negligible. This will ensure that the version info
is always kept updated.

Change-Id: Ib219d169f97e0b0a61cd5c370cbe9bdd94e6a69f
---
M bin/gen_build_version.py
M bin/make_impala.sh
2 files changed, 10 insertions(+), 19 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala refs/changes/29/2529/1
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Gerrit-MessageType: newchange
Gerrit-Change-Id: Ib219d169f97e0b0a61cd5c370cbe9bdd94e6a69f
Gerrit-PatchSet: 1
Gerrit-Project: Impala
Gerrit-Branch: cdh5-trunk
Gerrit-Owner: Sailesh Mukil <sa...@cloudera.com>