remove redundant conversions and braces

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

cli/command/container/opts.go

@@ -390,7 +390,7 @@ func parse(flags *pflag.FlagSet, copts *containerOptions, serverOS string) (*con
 	)
 
 	if len(copts.Args) > 0 {
-		runCmd = strslice.StrSlice(copts.Args)
+		runCmd = copts.Args
 	}
 
 	if copts.entrypoint != "" {
@@ -529,13 +529,11 @@ func parse(flags *pflag.FlagSet, copts *containerOptions, serverOS string) (*con
 		if haveHealthSettings {
 			return nil, errors.Errorf("--no-healthcheck conflicts with --health-* options")
 		}
-		test := strslice.StrSlice{"NONE"}
-		healthConfig = &container.HealthConfig{Test: test}
+		healthConfig = &container.HealthConfig{Test: strslice.StrSlice{"NONE"}}
 	} else if haveHealthSettings {
 		var probe strslice.StrSlice
 		if copts.healthCmd != "" {
-			args := []string{"CMD-SHELL", copts.healthCmd}
-			probe = strslice.StrSlice(args)
+			probe = []string{"CMD-SHELL", copts.healthCmd}
 		}
 		if copts.healthInterval < 0 {
 			return nil, errors.Errorf("--health-interval cannot be negative")

opts/opts.go

@@ -55,7 +55,7 @@ func (opts *ListOpts) Set(value string) error {
 		}
 		value = v
 	}
-	(*opts.values) = append((*opts.values), value)
+	*opts.values = append(*opts.values, value)
 	return nil
 }
 
@@ -63,7 +63,7 @@ func (opts *ListOpts) Set(value string) error {
 func (opts *ListOpts) Delete(key string) {
 	for i, k := range *opts.values {
 		if k == key {
-			(*opts.values) = append((*opts.values)[:i], (*opts.values)[i+1:]...)
+			*opts.values = append((*opts.values)[:i], (*opts.values)[i+1:]...)
 			return
 		}
 	}
@@ -81,7 +81,7 @@ func (opts *ListOpts) GetMap() map[string]struct{} {
 
 // GetAll returns the values of slice.
 func (opts *ListOpts) GetAll() []string {
-	return (*opts.values)
+	return *opts.values
 }
 
 // GetAllOrEmpty returns the values of the slice
@@ -106,7 +106,7 @@ func (opts *ListOpts) Get(key string) bool {
 
 // Len returns the amount of element in the slice.
 func (opts *ListOpts) Len() int {
-	return len((*opts.values))
+	return len(*opts.values)
 }
 
 // Type returns a string name for this Option type
@@ -167,9 +167,9 @@ func (opts *MapOpts) Set(value string) error {
 	}
 	vals := strings.SplitN(value, "=", 2)
 	if len(vals) == 1 {
-		(opts.values)[vals[0]] = ""
+		opts.values[vals[0]] = ""
 	} else {
-		(opts.values)[vals[0]] = vals[1]
+		opts.values[vals[0]] = vals[1]
 	}
 	return nil
 }

opts/throttledevice.go

@@ -77,7 +77,7 @@ func (opt *ThrottledeviceOpt) Set(val string) error {
 		}
 		value = v
 	}
-	(opt.values) = append((opt.values), value)
+	opt.values = append(opt.values, value)
 	return nil
 }
 
@@ -93,10 +93,7 @@ func (opt *ThrottledeviceOpt) String() string {
 
 // GetList returns a slice of pointers to ThrottleDevices.
 func (opt *ThrottledeviceOpt) GetList() []*blkiodev.ThrottleDevice {
-	var throttledevice []*blkiodev.ThrottleDevice
-	throttledevice = append(throttledevice, opt.values...)
-
-	return throttledevice
+	return append([]*blkiodev.ThrottleDevice{}, opt.values...)
 }
 
 // Type returns the option type

opts/weightdevice.go

@@ -59,7 +59,7 @@ func (opt *WeightdeviceOpt) Set(val string) error {
 		}
 		value = v
 	}
-	(opt.values) = append((opt.values), value)
+	opt.values = append(opt.values, value)
 	return nil
 }