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correct the flag comments

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Signed-off-by: Qiang Huang <h.huangqiang@huawei.com>
This commit is contained in:
Qiang Huang 2015-01-13 15:24:01 +08:00
parent a802fb3df3
commit a3bca489d0
1 changed files with 8 additions and 4 deletions
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12
mflag/flag.go
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@ -24,11 +24,15 @@
For such flags, the default value is just the initial value of the variable.
You can also add "deprecated" flags, they are still usable, but are not shown
in the usage and will display a warning when you try to use them:
var ip = flag.Int([]string{"#f", "#flagname", "-flagname2"}, 1234, "help message for flagname")
this will display: `Warning: '--flagname' is deprecated, it will be replaced by '--flagname2' soon. See usage.` and
in the usage and will display a warning when you try to use them. `#` before
an option means this option is deprecated, if there is an following option
without `#` ahead, then that's the replacement, if not, it will just be removed:
var ip = flag.Int([]string{"#f", "#flagname", "-flagname"}, 1234, "help message for flagname")
this will display: `Warning: '-f' is deprecated, it will be replaced by '--flagname' soon. See usage.` or
this will display: `Warning: '-flagname' is deprecated, it will be replaced by '--flagname' soon. See usage.`
var ip = flag.Int([]string{"f", "#flagname"}, 1234, "help message for flagname")
will display: `Warning: '-f' is deprecated, it will be removed soon. See usage.`
will display: `Warning: '-flagname' is deprecated, it will be removed soon. See usage.`
so you can only use `-f`.
You can also group one letter flags, bif you declare
var v = flag.Bool([]string{"v", "-verbose"}, false, "help message for verbose")