Fix quotation

Fix quotation

This change fixes quotation errors when passing around a variable containing a name, which includes whitespace. This was causing errors such as the following: 

<pre>
+ lxc_run sh package.sh 'ZeroVM CI (zerovmci)' ci@zerovm.org validator
+ ssh ubuntu@10.0.3.11 -oStrictHostKeyChecking=no sh package.sh ZeroVM CI '(zerovmci)' ci@zerovm.org validator
bash: -c: line 0: syntax error near unexpected token `('
bash: -c: line 0: `sh package.sh ZeroVM CI (zerovmci) ci@zerovm.org validator'
Build step 'Execute shell' marked build as failure
</pre>

See http://ci.oslab.cc/job/zvm-validator/100/console.