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flag: highlight support for double dashes in docs

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Updating examples, to show that double dashes are also permitted. This has been easy to miss previously.

Change-Id: Ib67b4e39fea90ef4cb9e894709c53baedfc18fc2
GitHub-Last-Rev: f7df57b646
GitHub-Pull-Request: golang/go#53628
Reviewed-on: https://go-review.googlesource.com/c/go/+/415374
Reviewed-by: Rob Pike <r@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Ian Lance Taylor <iant@google.com>
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Sebastian Gassner 2022-06-30 13:37:04 +00:00 • committed by Gopher Robot
parent c847a2c9f0
commit 9a4d5357f4
1 changed files with 2 additions and 1 deletions
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3
src/flag/flag.go
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@ -49,10 +49,11 @@ The arguments are indexed from 0 through flag.NArg()-1.
The following forms are permitted: The following forms are permitted:
-flag -flag
--flag // double dashes are also permitted
-flag=x -flag=x
-flag x // non-boolean flags only -flag x // non-boolean flags only
One or two minus signs may be used; they are equivalent. One or two dashes may be used; they are equivalent.
The last form is not permitted for boolean flags because the The last form is not permitted for boolean flags because the
meaning of the command meaning of the command