Move osutil to sys package

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

sys/prctl_solaris.go

@@ -0,0 +1,19 @@
+// +build solaris
+
+package sys
+
+import (
+	"errors"
+)
+
+//Solaris TODO
+
+// GetSubreaper returns the subreaper setting for the calling process
+func GetSubreaper() (int, error) {
+	return 0, errors.New("osutils GetSubreaper not implemented on Solaris")
+}
+
+// SetSubreaper sets the value i as the subreaper setting for the calling process
+func SetSubreaper(i int) error {
+	return errors.New("osutils SetSubreaper not implemented on Solaris")
+}