doctor: normalize paths before comparing
doctor: normalize paths before comparing

Change-Id: I4e0f9fd2a7dcf942e6ce669528a8b6118ca9286e

google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed