build_emoji: Use with for writing to files.
build_emoji: Use with for writing to files.

This is a nice code cleanup.

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