Description of problem:
At the end of overcloud deployment, the process tries to write into the overcloudrc the environment no_proxy configuration but it forgets double quoting the entire string.

Follows my customer example
# cat /etc/profile.d/proxy.sh 
PROXY_ENABLED="yes"
export http_proxy="http://hubsekiproxy.rnd.ericsson.se:8080"
export https_proxy="http://hubsekiproxy.rnd.ericsson.se:8080"
export no_proxy="localhost, 127.0.0.1, 10.209.97.86, .seki.rnd.ericsson.se, .rnd.ki.sw.ericsson.se, .rnd.ericsson.se, ctrl-vran-redhat011.vran.edn.ki.sw.ericsson.se"

Follows overcloudrc file after the deployment
# cat overcloudrc | grep proxy
export no_proxy=localhost, 127.0.0.1, 10.209.97.86, .seki.rnd.ericsson.se, .rnd.ki.sw.ericsson.se, .rnd.ericsson.se, ctrl-vran-redhat011.vran.edn.ki.sw.ericsson.se,ctrl-vran-redhat011.vran.edn.ki.sw.ericsson.se,10.209.97.100

Follows when I source the overcloudrc file.
source overcloudrc 
bash: export: `127.0.0.1,': not a valid identifier
bash: export: `10.209.97.86,': not a valid identifier
bash: export: `.seki.rnd.ericsson.se,': not a valid identifier
bash: export: `.rnd.ki.sw.ericsson.se,': not a valid identifier
bash: export: `.rnd.ericsson.se,': not a valid identifier
bash: export: `ctrl-vran-redhat011.vran.edn.ki.sw.ericsson.se,ctrl-vran-redhat011.vran.edn.ki.sw.ericsson.se,10.209.97.100': not a valid identifier

Version-Release number of selected component (if applicable):
OSP13z1

Actual results:
export no_proxy=localhost, 127.0.0.1, 10.209.97.86, .seki.rnd.ericsson.se, .rnd.ki.sw.ericsson.se, .rnd.ericsson.se, ctrl-vran-redhat011.vran.edn.ki.sw.ericsson.se,ctrl-vran-redhat011.vran.edn.ki.sw.ericsson.se,10.209.97.100


Expected results:
export no_proxy="localhost, 127.0.0.1, 10.209.97.86, .seki.rnd.ericsson.se, .rnd.ki.sw.ericsson.se, .rnd.ericsson.se, ctrl-vran-redhat011.vran.edn.ki.sw.ericsson.se,ctrl-vran-redhat011.vran.edn.ki.sw.ericsson.se,10.209.97.100"