Update vendor (#1414)

vendor/github.com/mgutz/ansi/README.md

@@ -34,6 +34,7 @@ Other examples
 
 ```go
 Color(s, "red")            // red
+Color(s, "red+d")          // red dim
 Color(s, "red+b")          // red bold
 Color(s, "red+B")          // red blinking
 Color(s, "red+u")          // red underline
@@ -73,6 +74,7 @@ Foreground Attributes
 * B = Blink
 * b = bold
 * h = high intensity (bright)
+* d = dim
 * i = inverse
 * s = strikethrough
 * u = underline

vendor/github.com/mgutz/ansi/ansi.go

@@ -24,9 +24,11 @@ const (
 	highIntensityBG   = 100
 
 	start         = "\033["
+	normal        = "0;"
 	bold          = "1;"
-	blink         = "5;"
+	dim           = "2;"
 	underline     = "4;"
+	blink         = "5;"
 	inverse       = "7;"
 	strikethrough = "9;"
 
@@ -164,10 +166,14 @@ func colorCode(style string) *bytes.Buffer {
 
 	buf.WriteString(start)
 	base := normalIntensityFG
+	buf.WriteString(normal) // reset any previous style
 	if len(fgStyle) > 0 {
 		if strings.Contains(fgStyle, "b") {
 			buf.WriteString(bold)
 		}
+		if strings.Contains(fgStyle, "d") {
+			buf.WriteString(dim)
+		}
 		if strings.Contains(fgStyle, "B") {
 			buf.WriteString(blink)
 		}

vendor/github.com/mgutz/ansi/doc.go

@@ -58,6 +58,7 @@ Attributes
 	B = Blink foreground
 	u = underline foreground
 	h = high intensity (bright) foreground, background
+	d = dim foreground
 	i = inverse
 
 Wikipedia ANSI escape codes [Colors](http://en.wikipedia.org/wiki/ANSI_escape_code#Colors)