django-template-graph: Fix shellcheck warnings.
django-template-graph: Fix shellcheck warnings.

In tools/django-template-graph line 10:
    for t in $(find -name '*.html' -printf '%P\n'); do
             ^-- SC2044: For loops over find output are fragile. Use find -exec or a while read loop.
               ^-- SC2185: Some finds don't have a default path. Specify '.' explicitly.

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

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