Fix line endings in resource-browser.py.
Fix line endings in resource-browser.py.

The line endings were in DOS/Windows format, rather than Unix format.
They've been converted to match the rest of the codebase.

haosdent/rbtools,davidt/rbtools,datjwu/rbtools,reviewboard/rbtools,davidt/rbtools,reviewboard/rbtools,1tush/rbtools,datjwu/rbtools,haosdent/rbtools,haosdent/rbtools,halvorlu/rbtools,datjwu/rbtools,reviewboard/rbtools,halvorlu/rbtools,beol/rbtools,beol/rbtools,davidt/rbtools,halvorlu/rbtools,beol/rbtools