Update vendor (#852)

vendor/github.com/spf13/viper/viper.go

@@ -180,10 +180,11 @@ type Viper struct {
 	remoteProviders []*defaultRemoteProvider
 
 	// Name of file to look for inside the path
-	configName string
-	configFile string
-	configType string
-	envPrefix  string
+	configName        string
+	configFile        string
+	configType        string
+	configPermissions os.FileMode
+	envPrefix         string
 
 	automaticEnvApplied bool
 	envKeyReplacer      *strings.Replacer
@@ -210,6 +211,7 @@ func New() *Viper {
 	v := new(Viper)
 	v.keyDelim = "."
 	v.configName = "config"
+	v.configPermissions = os.FileMode(0644)
 	v.fs = afero.NewOsFs()
 	v.config = make(map[string]interface{})
 	v.override = make(map[string]interface{})
@@ -687,6 +689,12 @@ func (v *Viper) Get(key string) interface{} {
 			return cast.ToString(val)
 		case int32, int16, int8, int:
 			return cast.ToInt(val)
+		case uint:
+			return cast.ToUint(val)
+		case uint32:
+			return cast.ToUint32(val)
+		case uint64:
+			return cast.ToUint64(val)
 		case int64:
 			return cast.ToInt64(val)
 		case float64, float32:
@@ -750,6 +758,24 @@ func (v *Viper) GetInt64(key string) int64 {
 	return cast.ToInt64(v.Get(key))
 }
 
+// GetUint returns the value associated with the key as an unsigned integer.
+func GetUint(key string) uint { return v.GetUint(key) }
+func (v *Viper) GetUint(key string) uint {
+	return cast.ToUint(v.Get(key))
+}
+
+// GetUint32 returns the value associated with the key as an unsigned integer.
+func GetUint32(key string) uint32 { return v.GetUint32(key) }
+func (v *Viper) GetUint32(key string) uint32 {
+	return cast.ToUint32(v.Get(key))
+}
+
+// GetUint64 returns the value associated with the key as an unsigned integer.
+func GetUint64(key string) uint64 { return v.GetUint64(key) }
+func (v *Viper) GetUint64(key string) uint64 {
+	return cast.ToUint64(v.Get(key))
+}
+
 // GetFloat64 returns the value associated with the key as a float64.
 func GetFloat64(key string) float64 { return v.GetFloat64(key) }
 func (v *Viper) GetFloat64(key string) float64 {
@@ -811,8 +837,6 @@ func (v *Viper) UnmarshalKey(key string, rawVal interface{}, opts ...DecoderConf
 		return err
 	}
 
-	v.insensitiviseMaps()
-
 	return nil
 }
 
@@ -828,8 +852,6 @@ func (v *Viper) Unmarshal(rawVal interface{}, opts ...DecoderConfigOption) error
 		return err
 	}
 
-	v.insensitiviseMaps()
-
 	return nil
 }
 
@@ -872,8 +894,6 @@ func (v *Viper) UnmarshalExact(rawVal interface{}) error {
 		return err
 	}
 
-	v.insensitiviseMaps()
-
 	return nil
 }
 
@@ -1334,7 +1354,7 @@ func (v *Viper) writeConfig(filename string, force bool) error {
 			return fmt.Errorf("File: %s exists. Use WriteConfig to overwrite.", filename)
 		}
 	}
-	f, err := v.fs.OpenFile(filename, flags, os.FileMode(0644))
+	f, err := v.fs.OpenFile(filename, flags, v.configPermissions)
 	if err != nil {
 		return err
 	}
@@ -1579,13 +1599,6 @@ func (v *Viper) WatchRemoteConfigOnChannel() error {
 	return v.watchKeyValueConfigOnChannel()
 }
 
-func (v *Viper) insensitiviseMaps() {
-	insensitiviseMap(v.config)
-	insensitiviseMap(v.defaults)
-	insensitiviseMap(v.override)
-	insensitiviseMap(v.kvstore)
-}
-
 // Retrieve the first found remote configuration.
 func (v *Viper) getKeyValueConfig() error {
 	if RemoteConfig == nil {
@@ -1778,6 +1791,12 @@ func (v *Viper) SetConfigType(in string) {
 	}
 }
 
+// SetConfigPermissions sets the permissions for the config file.
+func SetConfigPermissions(perm os.FileMode) { v.SetConfigPermissions(perm) }
+func (v *Viper) SetConfigPermissions(perm os.FileMode) {
+	v.configPermissions = perm.Perm()
+}
+
 func (v *Viper) getConfigType() string {
 	if v.configType != "" {
 		return v.configType