gfauto: allow longer CTS test names (#946)
gfauto: allow longer CTS test names (#946)

In add_amber_tests_to_cts.py, update the indices in a test description line so we can have longer test names.
google/graphicsfuzz,google/graphicsfuzz,google/graphicsfuzz,google/graphicsfuzz,google/graphicsfuzz,google/graphicsfuzz,google/graphicsfuzz