Clean up code

diff --git a/flag.go b/flag.go
index fa81564..6263a63 100644
--- a/flag.go
+++ b/flag.go

@@ -635,7 +635,7 @@
 
 // VarP is like Var, but accepts a shorthand letter that can be used after a single dash.
 func (f *FlagSet) VarP(value Value, name, shorthand, usage string) {
-	_ = f.VarPF(value, name, shorthand, usage)
+	f.VarPF(value, name, shorthand, usage)
 }
 
 // AddFlag will add the flag to the FlagSet

diff --git a/flag_test.go b/flag_test.go
index b294fc7..6c35a54 100644
--- a/flag_test.go
+++ b/flag_test.go

@@ -404,10 +404,10 @@
 
 func TestChangedHelper(t *testing.T) {
 	f := NewFlagSet("changedtest", ContinueOnError)
-	_ = f.Bool("changed", false, "changed bool")
-	_ = f.Bool("settrue", true, "true to true")
-	_ = f.Bool("setfalse", false, "false to false")
-	_ = f.Bool("unchanged", false, "unchanged bool")
+	f.Bool("changed", false, "changed bool")
+	f.Bool("settrue", true, "true to true")
+	f.Bool("setfalse", false, "false to false")
+	f.Bool("unchanged", false, "unchanged bool")
 
 	args := []string{"--changed", "--settrue", "--setfalse=false"}
 	if err := f.Parse(args); err != nil {

diff --git a/golangflag.go b/golangflag.go
index b056147..c4f47eb 100644
--- a/golangflag.go
+++ b/golangflag.go

@@ -6,13 +6,10 @@
 
 import (
 	goflag "flag"
-	"fmt"
 	"reflect"
 	"strings"
 )
 
-var _ = fmt.Print
-
 // flagValueWrapper implements pflag.Value around a flag.Value.  The main
 // difference here is the addition of the Type method that returns a string
 // name of the type.  As this is generally unknown, we approximate that with

diff --git a/ip.go b/ip.go
index 88a1743..3d414ba 100644
--- a/ip.go
+++ b/ip.go

@@ -6,8 +6,6 @@
 	"strings"
 )
 
-var _ = strings.TrimSpace
-
 // -- net.IP value
 type ipValue net.IP
 

diff --git a/ipnet.go b/ipnet.go
index 149b764..e2c1b8b 100644
--- a/ipnet.go
+++ b/ipnet.go

@@ -27,8 +27,6 @@
 	return "ipNet"
 }
 
-var _ = strings.TrimSpace
-
 func newIPNetValue(val net.IPNet, p *net.IPNet) *ipNetValue {
 	*p = val
 	return (*ipNetValue)(p)

diff --git a/string_array.go b/string_array.go
index 93b4e43..276b7ed 100644
--- a/string_array.go
+++ b/string_array.go

@@ -1,11 +1,5 @@
 package pflag
 
-import (
-	"fmt"
-)
-
-var _ = fmt.Fprint
-
 // -- stringArray Value
 type stringArrayValue struct {
 	value   *[]string

diff --git a/string_slice.go b/string_slice.go
index 7829cfa..05eee75 100644
--- a/string_slice.go
+++ b/string_slice.go

@@ -3,12 +3,9 @@
 import (
 	"bytes"
 	"encoding/csv"
-	"fmt"
 	"strings"
 )
 
-var _ = fmt.Fprint
-
 // -- stringSlice Value
 type stringSliceValue struct {
 	value   *[]string
@@ -39,7 +36,7 @@
 		return "", err
 	}
 	w.Flush()
-	return strings.TrimSuffix(b.String(), fmt.Sprintln()), nil
+	return strings.TrimSuffix(b.String(), "\n"), nil
 }
 
 func (s *stringSliceValue) Set(val string) error {