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add a more accurate error description for invalid tag name 

Signed-off-by: yuchangchun <yuchangchun1@huawei.com>
This commit is contained in:
yuchangchun 2015-06-02 21:03:05 +08:00
parent 1f903f652c
commit e0475d331b
1 changed files with 1 additions and 1 deletions
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2
graph/tags/tags.go
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@ -18,7 +18,7 @@ func ValidateTagName(name string) error {
return fmt.Errorf("tag name can't be empty")
}
if !validTagName.MatchString(name) {
return fmt.Errorf("Illegal tag name (%s): only [A-Za-z0-9_.-] are allowed, minimum 1, maximum 128 in length", name)
return fmt.Errorf("Illegal tag name (%s): only [A-Za-z0-9_.-] are allowed ('.' and '-' are NOT allowed in the initial), minimum 1, maximum 128 in length", name)
}
return nil
}