minor: Use `OUTER_CAPTURE_GROUP` variable instead of string value.
minor: Use `OUTER_CAPTURE_GROUP` variable instead of string value.

andersk/zulip,hackerkid/zulip,andersk/zulip,andersk/zulip,rht/zulip,rht/zulip,hackerkid/zulip,punchagan/zulip,eeshangarg/zulip,rht/zulip,rht/zulip,punchagan/zulip,eeshangarg/zulip,andersk/zulip,rht/zulip,eeshangarg/zulip,kou/zulip,kou/zulip,rht/zulip,rht/zulip,hackerkid/zulip,hackerkid/zulip,punchagan/zulip,punchagan/zulip,punchagan/zulip,andersk/zulip,punchagan/zulip,zulip/zulip,eeshangarg/zulip,kou/zulip,zulip/zulip,zulip/zulip,hackerkid/zulip,kou/zulip,punchagan/zulip,eeshangarg/zulip,hackerkid/zulip,zulip/zulip,zulip/zulip,andersk/zulip,zulip/zulip,eeshangarg/zulip,kou/zulip,hackerkid/zulip,eeshangarg/zulip,kou/zulip,andersk/zulip,zulip/zulip,kou/zulip