Fixes #5169 Evaluate check_mode in the user module SunOS class

library/system/user

@@ -1137,6 +1137,9 @@ class SunOS(User):
 
         cmd.append(self.name)
 
+        if self.module.check_mode:
+            return (0, '', '')
+        else:
             (rc, out, err) = self.execute_command(cmd)
             if rc is not None and rc != 0:
                 self.module.fail_json(name=self.name, msg=err, rc=rc)
@@ -1214,6 +1217,9 @@ class SunOS(User):
             cmd.append('-s')
             cmd.append(self.shell)
 
+        if self.module.check_mode:
+            return (0, '', '')
+        else:
             # modify the user if cmd will do anything
             if cmd_len != len(cmd):
                 cmd.append(self.name)