Fix typo in mixin config preventing the server from running. Fixes @gabizou and @lucdon
Fix typo in mixin config preventing the server from running.
Fixes @gabizou and @lucdon

kashike/SpongeCommon,JBYoshi/SpongeCommon,kamcio96/SpongeCommon,SpongePowered/SpongeCommon,sanman00/SpongeCommon,kamcio96/SpongeCommon,Grinch/SpongeCommon,modwizcode/SpongeCommon,SpongePowered/Sponge,SpongePowered/Sponge,kashike/SpongeCommon,ryantheleach/SpongeCommon,DDoS/SpongeCommon,Grinch/SpongeCommon,kenzierocks/SpongeCommon,RTLSponge/SpongeCommon,RTLSponge/SpongeCommon,ryantheleach/SpongeCommon,clienthax/SpongeCommon,modwizcode/SpongeCommon,SpongePowered/SpongeCommon,kenzierocks/SpongeCommon,clienthax/SpongeCommon,SpongePowered/Sponge,JBYoshi/SpongeCommon,sanman00/SpongeCommon,hsyyid/SpongeCommon,DDoS/SpongeCommon,hsyyid/SpongeCommon