ldd: separate Parse from Exec and trim space

Signed-off-by: Ophestra Umiker <cat@ophivana.moe>

ldd/exec.go

@@ -0,0 +1,18 @@
+package ldd
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"strings"
+)
+
+func Exec(p string) ([]*Entry, error) {
+	t := exec.Command("ldd", p)
+	t.Stdout, t.Stderr = new(strings.Builder), os.Stderr
+	if err := t.Run(); err != nil {
+		return nil, err
+	}
+
+	return Parse(t.Stdout.(fmt.Stringer))
+}