Update docs and trunk dirs if they exist overriding any local merge conflicts.

Created to fix bug http://code.google.com/p/skia/issues/detail?id=710 :
housekeeping buildbot: conflict in UpdateDoxygen step.

git-svn-id: http://skia.googlecode.com/svn/trunk@4640 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed