…#3579)
Limit floating-point default values in CLI display to 3 significant
digits using StringPrintf("%.3g").
Example changes:
- `--Mapper.min_focal_length_ratio (=0.10000000000000001)` ->
`--Mapper.min_focal_length_ratio (=0.1) `
- `--Mapper.init_max_forward_motion (=0.94999999999999996)` ->
`--Mapper.init_max_forward_motion (=0.95) `
- `--SiftExtraction.dsp_min_scale arg (=0.16666666666666666)` ->
`--SiftExtraction.dsp_min_scale arg (=0.167)`
- `--Example.large_number arg (=500000)` -> `--Example.large_number arg
(=5e+05)`
- `--Example.small_number arg (=0.00005)` -> `--Example.small_number arg
(=5e-05)`
Co-authored-by: StonerLing <sisyphus.stoner@outlook.com>