calcs/base: Corrected a comment
calcs/base: Corrected a comment


Former-commit-id: b581dd55a68d352dd392c2338f254d9a4f9c1d23 [formerly 59ff8691ec0797964faaa45f0fbc31be826c82ed]
Former-commit-id: f75645a6a1f1b9e9a2e8c442b0a97c04a8c2c02b
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine