Document the workaround for the diff_cmd vs. diff-cmd inconsitency.
Document the workaround for the diff_cmd vs. diff-cmd inconsitency.

* www/project_faq.html: New FAQ in the Troubleshooting section:
"I get exitcode 2 from diff3 on Windows"


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@844664 13f79535-47bb-0310-9956-ffa450edef68

YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion