Reverse dependencies for savage

Latest version of the following gems require savage

Gem	Version	Date	Downloads
dragonfly_harfbuzz +24.1 Thousand Downloads	`1.1.4` January 26, 2019	January 26, 2019	24.1 Thousand
hieroglyph +23.2 Thousand Downloads	`0.1.5` August 16, 2012	August 16, 2012	23.2 Thousand
vector_be_winding +4.55 Thousand Downloads	`1.0.0` February 06, 2018	February 06, 2018	4.55 Thousand