add dependency scripts

vendor/github.com/docker/go-units/MAINTAINERS

@@ -27,7 +27,7 @@
 
 	[people.akihirosuda]
 	Name = "Akihiro Suda"
-	Email = "akihiro.suda.cz@hco.ntt.co.jp"
+	Email = "suda.akihiro@lab.ntt.co.jp"
 	GitHub = "AkihiroSuda"
 
 	[people.dnephin]

vendor/github.com/docker/go-units/circle.yml

@@ -1,7 +1,7 @@
 dependencies:
   post:
     # install golint
-    - go get golang.org/x/lint/golint
+    - go get github.com/golang/lint/golint
 
 test:
   pre:

vendor/github.com/docker/go-units/duration.go

@@ -18,7 +18,7 @@ func HumanDuration(d time.Duration) string {
 		return fmt.Sprintf("%d seconds", seconds)
 	} else if minutes := int(d.Minutes()); minutes == 1 {
 		return "About a minute"
-	} else if minutes < 60 {
+	} else if minutes < 46 {
 		return fmt.Sprintf("%d minutes", minutes)
 	} else if hours := int(d.Hours() + 0.5); hours == 1 {
 		return "About an hour"

vendor/github.com/docker/go-units/ulimit.go

@@ -96,13 +96,8 @@ func ParseUlimit(val string) (*Ulimit, error) {
 		return nil, fmt.Errorf("too many limit value arguments - %s, can only have up to two, `soft[:hard]`", parts[1])
 	}
 
-	if *hard != -1 {
-		if soft == -1 {
-			return nil, fmt.Errorf("ulimit soft limit must be less than or equal to hard limit: soft: -1 (unlimited), hard: %d", *hard)
-		}
-		if soft > *hard {
-			return nil, fmt.Errorf("ulimit soft limit must be less than or equal to hard limit: %d > %d", soft, *hard)
-		}
+	if soft > *hard {
+		return nil, fmt.Errorf("ulimit soft limit must be less than or equal to hard limit: %d > %d", soft, *hard)
 	}
 
 	return &Ulimit{Name: parts[0], Soft: soft, Hard: *hard}, nil