Port "print more digits of model parameter: %.16g to %.17g"
Port "print more digits of model parameter: %.16g to %.17g"

Ported from https://github.com/cjlin1/liblinear/commit/07dc766ad4552b1f10cf4640c7ac4e6a64de3f1f

bwaldvogel/liblinear-java,bwaldvogel/liblinear-java