setup_path_on_import: Skip activate_this if already activated.
setup_path_on_import: Skip activate_this if already activated.

Signed-off-by: Anders Kaseorg <087231934ba8fcf78bc142ce37d193b895ac03c4@mit.edu>

rht/zulip,showell/zulip,rishig/zulip,hackerkid/zulip,brainwane/zulip,timabbott/zulip,punchagan/zulip,rishig/zulip,shubhamdhama/zulip,shubhamdhama/zulip,synicalsyntax/zulip,kou/zulip,andersk/zulip,rishig/zulip,shubhamdhama/zulip,rishig/zulip,showell/zulip,punchagan/zulip,andersk/zulip,brainwane/zulip,tommyip/zulip,punchagan/zulip,hackerkid/zulip,kou/zulip,punchagan/zulip,timabbott/zulip,eeshangarg/zulip,brainwane/zulip,tommyip/zulip,rht/zulip,hackerkid/zulip,timabbott/zulip,zulip/zulip,punchagan/zulip,eeshangarg/zulip,showell/zulip,hackerkid/zulip,punchagan/zulip,brainwane/zulip,punchagan/zulip,shubhamdhama/zulip,zulip/zulip,timabbott/zulip,kou/zulip,zulip/zulip,rht/zulip,rht/zulip,shubhamdhama/zulip,tommyip/zulip,synicalsyntax/zulip,timabbott/zulip,rishig/zulip,tommyip/zulip,rishig/zulip,andersk/zulip,eeshangarg/zulip,andersk/zulip,zulip/zulip,hackerkid/zulip,zulip/zulip,synicalsyntax/zulip,showell/zulip,showell/zulip,showell/zulip,brainwane/zulip,synicalsyntax/zulip,showell/zulip,andersk/zulip,rishig/zulip,eeshangarg/zulip,kou/zulip,synicalsyntax/zulip,synicalsyntax/zulip,shubhamdhama/zulip,timabbott/zulip,zulip/zulip,synicalsyntax/zulip,andersk/zulip,tommyip/zulip,kou/zulip,tommyip/zulip,rht/zulip,andersk/zulip,tommyip/zulip,shubhamdhama/zulip,hackerkid/zulip,eeshangarg/zulip,kou/zulip,brainwane/zulip,hackerkid/zulip,timabbott/zulip,rht/zulip,brainwane/zulip,eeshangarg/zulip,kou/zulip,zulip/zulip,rht/zulip,eeshangarg/zulip