Change casing of option to be consistent with existing style.
Change casing of option to be consistent with existing style.

jaredhanson/passport-google-oauth,tadwhitaker/passport-google-oauth,4barz/passport-pinterest-oauth,entrecode/passport-google-oauth,ksambhav/passport-google-oauth,rupanjanbaidya/passport-google-oauth,juansgaitan/passport-google-oauth,shivani258/passport-google-oauth,MrChristofferson/passport-google-oauth,klousiaj/passport-google-oauth,andrerpena/passport-google-oauth,Burste/passport-google-oauth2