./run_tests.sh --makemessages update English PO files only
./run_tests.sh --makemessages update English PO files only

Closes-Bug: #1224388

We don't need to update PO files of all languages.
PO files of languages other than English should be update by
importing translations from Transifex.

This commit changes "run_tests.sh --makemessages" only updates
English PO files. This makes a patch updating PO files shorter
and helps reviewers to check it.

Change-Id: I5410a06b0bcb0f42c5a0853f95a3fe2087519d51

orbitfp7/horizon,yjxtogo/horizon,eayunstack/horizon,endorphinl/horizon-fork,xinwu/horizon,endorphinl/horizon-fork,orbitfp7/horizon,FNST-OpenStack/horizon,NeCTAR-RC/horizon,wangxiangyu/horizon,orbitfp7/horizon,luhanhan/horizon,ChameleonCloud/horizon,Tesora/tesora-horizon,pranavtendolkr/horizon,ging/horizon,tanglei528/horizon,Mirantis/mos-horizon,mrunge/horizon_lib,CiscoSystems/avos,kaiweifan/horizon,mdavid/horizon,blueboxgroup/horizon,dan1/horizon-proto,mrunge/openstack_horizon,Mirantis/mos-horizon,NCI-Cloud/horizon,izadorozhna/dashboard_integration_tests,redhat-openstack/horizon,davidcusatis/horizon,philoniare/horizon,VaneCloud/horizon,CiscoSystems/horizon,coreycb/horizon,bigswitch/horizon,openstack/horizon,wolverineav/horizon,tanglei528/horizon,dan1/horizon-x509,dan1/horizon-proto,sandvine/horizon,JioCloud/horizon,BiznetGIO/horizon,wangxiangyu/horizon,openstack-ja/horizon,yjxtogo/horizon,Metaswitch/horizon,NCI-Cloud/horizon,Hodorable/0602,Dark-Hacker/horizon,maestro-hybrid-cloud/horizon,doug-fish/horizon,liyitest/rr,vladryk/horizon,redhat-openstack/horizon,liyitest/rr,dan1/horizon-x509,idjaw/horizon,kfox1111/horizon,yanheven/console,mandeepdhami/horizon,citrix-openstack-build/horizon,xinwu/horizon,watonyweng/horizon,tqtran7/horizon,karthik-suresh/horizon,RudoCris/horizon,django-leonardo/horizon,ging/horizon,dan1/horizon-x509,zouyapeng/horizon,mandeepdhami/horizon,CiscoSystems/horizon,vladryk/horizon,RudoCris/horizon,Solinea/horizon,django-leonardo/horizon,redhat-openstack/horizon,FNST-OpenStack/horizon,Daniex/horizon,saydulk/horizon,mrunge/horizon,blueboxgroup/horizon,kfox1111/horizon,rickerc/horizon_audit,Metaswitch/horizon,bigswitch/horizon,wolverineav/horizon,tqtran7/horizon,CiscoSystems/avos,flochaz/horizon,henaras/horizon,openstack-ja/horizon,tsufiev/horizon,watonyweng/horizon,flochaz/horizon,zouyapeng/horizon,karthik-suresh/horizon,Daniex/horizon,gochist/horizon,maestro-hybrid-cloud/horizon,NeCTAR-RC/horizon,citrix-openstack-build/horizon,j4/horizon,anthonydillon/horizon,rickerc/horizon_audit,Mirantis/mos-horizon,henaras/horizon,Hodorable/0602,nvoron23/avos,saydulk/horizon,ging/horizon,mrunge/horizon_lib,idjaw/horizon,spring-week-topos/horizon-week,kfox1111/horizon,mdavid/horizon,CiscoSystems/horizon,aaronorosen/horizon-congress,icloudrnd/automation_tools,FNST-OpenStack/horizon,redhat-cip/horizon,noironetworks/horizon,JioCloud/horizon,ging/horizon,netscaler/horizon,Dark-Hacker/horizon,mrunge/horizon,tellesnobrega/horizon,tanglei528/horizon,NeCTAR-RC/horizon,luhanhan/horizon,wangxiangyu/horizon,ikargis/horizon_fod,redhat-openstack/horizon,noironetworks/horizon,gerrive/horizon,dan1/horizon-proto,eayunstack/horizon,BiznetGIO/horizon,JioCloud/horizon,django-leonardo/horizon,tellesnobrega/horizon,mandeepdhami/horizon,coreycb/horizon,doug-fish/horizon,takeshineshiro/horizon,bigswitch/horizon,promptworks/horizon,mrunge/horizon_lib,davidcusatis/horizon,tsufiev/horizon,coreycb/horizon,blueboxgroup/horizon,netscaler/horizon,yeming233/horizon,mrunge/openstack_horizon,promptworks/horizon,nvoron23/avos,icloudrnd/automation_tools,sandvine/horizon,yjxtogo/horizon,promptworks/horizon,Dark-Hacker/horizon,newrocknj/horizon,watonyweng/horizon,NeCTAR-RC/horizon,Daniex/horizon,takeshineshiro/horizon,Dark-Hacker/horizon,watonyweng/horizon,Metaswitch/horizon,rickerc/horizon_audit,wangxiangyu/horizon,izadorozhna/dashboard_integration_tests,davidcusatis/horizon,gerrive/horizon,endorphinl/horizon,newrocknj/horizon,newrocknj/horizon,BiznetGIO/horizon,yeming233/horizon,VaneCloud/horizon,gerrive/horizon,luhanhan/horizon,yanheven/console,Solinea/horizon,xme1226/horizon,dan1/horizon-proto,Hodorable/0602,CiscoSystems/horizon,kaiweifan/horizon,openstack/horizon,liyitest/rr,CiscoSystems/avos,aaronorosen/horizon-congress,sandvine/horizon,Hodorable/0602,Tesora/tesora-horizon,icloudrnd/automation_tools,CiscoSystems/avos,Mirantis/mos-horizon,mdavid/horizon,Tesora/tesora-horizon,redhat-cip/horizon,idjaw/horizon,zouyapeng/horizon,karthik-suresh/horizon,bigswitch/horizon,Daniex/horizon,yanheven/console,ikargis/horizon_fod,openstack-ja/horizon,saydulk/horizon,vladryk/horizon,mdavid/horizon,endorphinl/horizon,gerrive/horizon,VaneCloud/horizon,NCI-Cloud/horizon,sandvine/horizon,ChameleonCloud/horizon,anthonydillon/horizon,openstack/horizon,froyobin/horizon,eayunstack/horizon,froyobin/horizon,idjaw/horizon,damien-dg/horizon,Solinea/horizon,henaras/horizon,takeshineshiro/horizon,philoniare/horizon,tellesnobrega/horizon,takeshineshiro/horizon,karthik-suresh/horizon,pranavtendolkr/horizon,bac/horizon,newrocknj/horizon,tqtran7/horizon,wolverineav/horizon,noironetworks/horizon,agileblaze/OpenStackTwoFactorAuthentication,pranavtendolkr/horizon,j4/horizon,ChameleonCloud/horizon,henaras/horizon,tqtran7/horizon,davidcusatis/horizon,pranavtendolkr/horizon,anthonydillon/horizon,agileblaze/OpenStackTwoFactorAuthentication,j4/horizon,tsufiev/horizon,ChameleonCloud/horizon,j4/horizon,redhat-cip/horizon,gochist/horizon,BiznetGIO/horizon,RudoCris/horizon,xme1226/horizon,tsufiev/horizon,dan1/horizon-x509,saydulk/horizon,promptworks/horizon,netscaler/horizon,Tesora/tesora-horizon,openstack/horizon,agileblaze/OpenStackTwoFactorAuthentication,luhanhan/horizon,citrix-openstack-build/horizon,mandeepdhami/horizon,kfox1111/horizon,xinwu/horizon,spring-week-topos/horizon-week,kaiweifan/horizon,philoniare/horizon,damien-dg/horizon,FNST-OpenStack/horizon,damien-dg/horizon,doug-fish/horizon,philoniare/horizon,bac/horizon,endorphinl/horizon,aaronorosen/horizon-congress,endorphinl/horizon-fork,mrunge/openstack_horizon,froyobin/horizon,spring-week-topos/horizon-week,bac/horizon,maestro-hybrid-cloud/horizon,tellesnobrega/horizon,zouyapeng/horizon,xinwu/horizon,mrunge/horizon,anthonydillon/horizon,maestro-hybrid-cloud/horizon,VaneCloud/horizon,yeming233/horizon,Metaswitch/horizon,blueboxgroup/horizon,Solinea/horizon,nvoron23/avos,vladryk/horizon,icloudrnd/automation_tools,yjxtogo/horizon,noironetworks/horizon,nvoron23/avos,bac/horizon,NCI-Cloud/horizon,coreycb/horizon,damien-dg/horizon,flochaz/horizon,agileblaze/OpenStackTwoFactorAuthentication,wolverineav/horizon,xme1226/horizon,gochist/horizon,orbitfp7/horizon,endorphinl/horizon,flochaz/horizon,yeming233/horizon,doug-fish/horizon,liyitest/rr,RudoCris/horizon,ikargis/horizon_fod,django-leonardo/horizon,endorphinl/horizon-fork,redhat-cip/horizon