Add move_home option to user module

library/system/user

@@ -94,6 +94,14 @@ options:
             - Unless set to C(no), a home directory will be made for the user
               when the account is created or if the home directory does not
               exist. 
+    move_home:
+        required: false
+        default: "no"
+        choices: [ "yes", "no" ]
+        description:
+            - If set to C(yes) when used with C(home=), attempt to move the
+              user's home directory to the specified directory if it isn't there
+              already.
     system:
         required: false
         default: "no"
@@ -231,6 +239,7 @@ class User(object):
         self.force      = module.params['force']
         self.remove     = module.params['remove']
         self.createhome = module.params['createhome']
+        self.move_home  = module.params['move_home']
         self.system     = module.params['system']
         self.login_class = module.params['login_class']
         self.append     = module.params['append']
@@ -389,6 +398,7 @@ class User(object):
             cmd.append(self.comment)
 
         if self.home is not None and info[5] != self.home:
+            if self.move_home:
                 cmd.append('-m')
             cmd.append('-d')
             cmd.append(self.home)
@@ -705,6 +715,7 @@ class FreeBsdUser(User):
             cmd.append(self.comment)
 
         if self.home is not None and info[5] != self.home:
+            if self.move_home:
                 cmd.append('-m')
             cmd.append('-d')
             cmd.append(self.home)
@@ -892,6 +903,7 @@ class OpenBSDUser(User):
             cmd.append(self.comment)
 
         if self.home is not None and info[5] != self.home:
+            if self.move_home:
                 cmd.append('-m')
             cmd.append('-d')
             cmd.append(self.home)
@@ -1059,6 +1071,7 @@ class NetBSDUser(User):
             cmd.append(self.comment)
 
         if self.home is not None and info[5] != self.home:
+            if self.move_home:
                 cmd.append('-m')
             cmd.append('-d')
             cmd.append(self.home)
@@ -1222,6 +1235,7 @@ class SunOS(User):
                 cmd.append(self.comment)
 
         if self.home is not None and info[5] != self.home:
+            if self.move_home:
                 cmd.append('-m')
             cmd.append('-d')
             cmd.append(self.home)
@@ -1378,6 +1392,7 @@ class AIX(User):
                 cmd.append(self.comment)
 
         if self.home is not None and info[5] != self.home:
+            if self.move_home:
                 cmd.append('-m')
             cmd.append('-d')
             cmd.append(self.home)
@@ -1441,6 +1456,7 @@ def main():
             createhome=dict(default='yes', type='bool'),
             system=dict(default='no', type='bool'),
             # following options are specific to usermod
+            move_home=dict(default='no', type='bool'),
             append=dict(default='no', type='bool'),
             # following are specific to ssh key generation
             generate_ssh_key=dict(type='bool'),
@@ -1488,6 +1504,7 @@ def main():
             # modify user (note: this function is check mode aware)
             (rc, out, err) = user.modify_user()
             result['append'] = user.append
+            result['move_home'] = user.move_home
         if rc is not None and rc != 0:
             module.fail_json(name=user.name, msg=err, rc=rc)
         if user.password is not None: