Description of problem:
After install a system in in Brazilian Portuguese, rhevm-dwh-setup fails with error:

 psql: FATAL:  autenticação do tipo Ident falhou para usuário "engine_history"

Version-Release number of selected component (if applicable):

 rhevm-dwh-3.3.0-29.el6ev.noarch

How reproducible:

 100%

Steps to Reproduce:
1. Install RHEL in Brazilian Portuguese
2. Install and setup rhevm
3. Install rhevm-dwh:

 # yum install rhevm-dwh

4. Run dwh-setup:

 # rhevm-dwh-setup

5. Answer the questions. Setup will fail with:

2014-02-19 20:39:50::DEBUG::decorators::18::root:: running createDbSchema
2014-02-19 20:39:50::DEBUG::rhevm-dwh-setup::141::root:: installing ovirt_engine_history db
2014-02-19 20:39:50::DEBUG::rhevm-dwh-setup::144::root:: ovirt engine history db creation is logged at /var/log/ovirt-engine/ovirt-history-db-install-2014_02_19_20_39_50.log
2014-02-19 20:39:50::DEBUG::common_utils::907::root:: Executing command --> '/usr/share/ovirt-engine-dwh/db-scripts/create_schema.sh -l /var/log/ovirt-engine/ovirt-history-db-install-2014_02_19_20_39_50.log -u engine_history -s localhost -p 5432 -g' in working directory '/root'
2014-02-19 20:39:50::DEBUG::common_utils::962::root:: output =
2014-02-19 20:39:50::DEBUG::common_utils::963::root:: stderr = psql: FATAL:  autenticação do tipo Ident falhou para usuário "engine_history"

2014-02-19 20:39:50::DEBUG::common_utils::964::root:: retcode = 2
2014-02-19 20:39:50::ERROR::decorators::27::root:: Traceback (most recent call last):
  File "/usr/share/ovirt-engine-dwh/decorators.py", line 20, in wrapped_f
    output = f(*args)
  File "/usr/bin/rhevm-dwh-setup", line 160, in createDbSchema
    envDict={'ENGINE_PGPASS': PGPASS_TEMP},
  File "/usr/share/ovirt-engine-dwh/common_utils.py", line 967, in execCmd
    raise Exception(msg)
Exception: Error while trying to create ovirt_engine_history db

2014-02-19 20:39:50::ERROR::rhevm-dwh-setup::691::root:: Exception caught!
2014-02-19 20:39:50::ERROR::rhevm-dwh-setup::692::root:: Traceback (most recent call last):
  File "/usr/bin/rhevm-dwh-setup", line 637, in main
    createDbSchema(db_dict)
  File "/usr/share/ovirt-engine-dwh/decorators.py", line 28, in wrapped_f
    raise Exception(instance)
Exception: Error while trying to create ovirt_engine_history db


Additional info:

Affected system:
# locale
LANG=en_US.UTF-8
LC_CTYPE="en_US.UTF-8"
LC_NUMERIC=pt_BR.utf8
LC_TIME=pt_BR.utf8
LC_COLLATE="en_US.UTF-8"
LC_MONETARY=pt_BR.utf8
LC_MESSAGES="en_US.UTF-8"
LC_PAPER="en_US.UTF-8"
LC_NAME="en_US.UTF-8"
LC_ADDRESS="en_US.UTF-8"
LC_TELEPHONE="en_US.UTF-8"
LC_MEASUREMENT=pt_BR.utf8
LC_IDENTIFICATION="en_US.UTF-8"
LC_ALL=

Healthy system (installed in English/US, rhevm-dwh-setup successful):
# locale
LANG=en_US.utf8
LC_CTYPE="en_US.utf8"
LC_NUMERIC=pt_BR.utf8
LC_TIME=pt_BR.utf8
LC_COLLATE="en_US.utf8"
LC_MONETARY=pt_BR.utf8
LC_MESSAGES="en_US.utf8"
LC_PAPER="en_US.utf8"
LC_NAME="en_US.utf8"
LC_ADDRESS="en_US.utf8"
LC_TELEPHONE="en_US.utf8"
LC_MEASUREMENT=pt_BR.utf8
LC_IDENTIFICATION="en_US.utf8"
LC_ALL=


Workarround:

Install system-config-language:
 # yum install -y system-config-language

Execute:
 # system-config-language

  Select "English (USA)" then "OK"

Run setup again:
 # rhevm-dwh-setup

Setup now is expected to finish successfully.