Add warning about GOPATH to bug_chomper/run_server.sh

BUG=skia:2551
R=scroggo@google.com

Author: borenet@google.com

Review URL: https://codereview.chromium.org/285763003

git-svn-id: http://skia.googlecode.com/svn/trunk@14732 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed