Yo Chiang 3edfbc214a Set bpmodify usage function ... golang `flag` package's default FlagSet `flag.CommandLine` calls `flag.Usage` and `os.Exit(2)` on error to print the usage string. Set `flag.Usage` to our custom usage function. Test: m bpmodify; bpmodify -h; bpmodify --help Change-Id: Ida107b0dbb07c291c3d7ea90eda9147d04a7cd51		2020-03-04 09:46:17 +08:00
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bpmodify.go	Set bpmodify usage function	2020-03-04 09:46:17 +08:00