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Fix typo

Signed-off-by: Adrien Gallouët <agallouet@gmail.com>

angt authored on 2015/09/02 17:43:49
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@@ -16,7 +16,7 @@ import (
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 // Usage: docker save [OPTIONS] IMAGE [IMAGE...]
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 func (cli *DockerCli) CmdSave(args ...string) error {
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 	cmd := Cli.Subcmd("save", []string{"IMAGE [IMAGE...]"}, "Save an image(s) to a tar archive (streamed to STDOUT by default)", true)
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-	outfile := cmd.String([]string{"o", "-output"}, "", "Write to an file, instead of STDOUT")
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+	outfile := cmd.String([]string{"o", "-output"}, "", "Write to a file, instead of STDOUT")
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 	cmd.Require(flag.Min, 1)
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 	cmd.ParseFlags(args, true)