numfmt: don't round floats if --from is "none" #3742
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So far uutils numfmt rounds floats up if
--fromis not specified. For example,numfmt 0.1returns1. GNU numfmt doesn't do any rounding in this case, i.e., it returns0.1in the aforementioned example.This PR fixes this behavior and makes the tests
float-1,float-2,neg-5, andleading-2in https:/coreutils/coreutils/blob/master/tests/misc/numfmt.pl pass.