sed command to get RAM for rpm packages is broken

Build 138:
http://qa.hq.northscale.net/view/2.0.1/job/ubuntu-64-2.0-new-rebalance-tests-P0/325/console

2013-01-18 05:28:39,371 - root - INFO - command executed successfully
2013-01-18 05:28:39,371 - root - ERROR - /var/tmp/rpm-tmp.90220: command substitution: line 27: unexpected EOF while looking for matching `''
2013-01-18 05:28:39,373 - root - ERROR - /var/tmp/rpm-tmp.90220: command substitution: line 28: syntax error: unexpected end of file
2013-01-18 05:28:39,373 - root - INFO - Minimum RAM required : 4 GB
2013-01-18 05:28:39,375 - root - INFO - System RAM configured :
2013-01-18 05:28:39,375 - root - INFO -
2013-01-18 05:28:39,376 - root - INFO - Minimum number of processors required : 4 cores
2013-01-18 05:28:39,376 - root - INFO - Number of processors on the system : 4 cores
2013-01-18 05:28:39,376 - root - INFO -
2013-01-18 05:28:39,379 - root - INFO - Skipping server start due to INSTALL_DONT_START_SERVER ...
2013-01-18 05:28:39,379 - root - INFO -
2013-01-18 05:28:39,380 - root - INFO - You have successfully installed Couchbase Server.
2013-01-18 05:28:39,380 - root - INFO - Please browse to http://localhost.localdomain:8091/ to configure your server.
2013-01-18 05:28:39,380 - root - INFO - Please refer to http://couchbase.com for additional resources.
2013-01-18 05:28:39,381 - root - INFO -
2013-01-18 05:28:39,381 - root - INFO - Please note that you have to update your firewall configuration to
2013-01-18 05:28:39,382 - root - INFO - allow connections to the following ports: 11211, 11210, 11209, 4369,
2013-01-18 05:28:39,382 - root - INFO - 8091, 8092 and from 21100 to 21299.
2013-01-18 05:28:39,382 - root - INFO -
2013-01-18 05:28:39,383 - root - INFO - By using this software you agree to the End User License Agreement.
2013-01-18 05:28:39,383 - root - INFO - See /opt/couchbase/LICENSE.txt.
2013-01-18 05:28:39,383 - root - INFO -
2013-01-18 05:28:39,383 - root - INFO - running command.raw /opt/couchbase/bin/cbenable_core_dumps.sh /tmp
2013-01-18 05:28:39,501 - root - INFO - command executed successfully
2013-01-18 05:28:39,504 - root - INFO - running command.raw sed -i 's/ulimit -c unlimited/ulimit -c unlimited\n export COUCHBASE_NUM_VBUCKETS=1024/' /opt/couchbase/etc/couchbase_init.d
2013-01-18 05:28:39,633 - root - INFO - command executed successfully
2013-01-18 05:28:39,634 - root - INFO - running command.raw /etc/init.d/couchbase-server start
2013-01-18 05:28:41,408 - root - INFO - command executed successfully
2013-01-18 05:28:41,409 - root - INFO - Starting couchbase-server[ OK ]
2013-01-18 05:28:41,410 - root - INFO - wait 5 seconds for membase server to start
thread installer-thread-10.3.121.107 finished
installation failed. initializer threads were skipped
some nodes were not install successfully!

issue is in commit:

https://github.com/couchbase/voltron/commit/18fd05f1fa59d685cc5c409edea3f5f9d936e8fd

now->$ `grep 'MemTotal' /proc/meminfo | sed 's/'s/MemTotal:\s*//g'`
bash: command substitution: line 1: unexpected EOF while looking for matching `''
bash: command substitution: line 2: syntax error: unexpected end of file

should be as in deb file->$ grep 'MemTotal' /proc/meminfo | sed 's/MemTotal:\s*//g'
16314556 kB