Add get_checksum option to win_stat to work with new use of the stat module for checksumming

lib/ansible/modules/windows/win_stat.ps1

@@ -31,6 +31,7 @@ If ($path -eq $FALSE)
 }
 
 $get_md5 = Get-Attr $params "get_md5" $TRUE | ConvertTo-Bool;
+$get_checksum = Get-Attr $params "get_checksum" $TRUE | ConvertTo-Bool;
 
 $result = New-Object psobject @{
     stat = New-Object psobject
@@ -63,7 +64,7 @@ Else
     Set-Attr $result.stat "exists" $FALSE;
 }
 
-If ($get_md5 -and $result.stat.exists -and -not $result.stat.isdir)
+If (($get_checksum -or $get_md5) -and $result.stat.exists -and -not $result.stat.isdir)
 {
     $hash = Get-FileChecksum($path);
     Set-Attr $result.stat "md5" $hash;

lib/ansible/modules/windows/win_stat.py

@@ -34,10 +34,18 @@ options:
     aliases: []
   get_md5:
     description:
-      - Whether to return the md5 sum of the file
+      - Whether to return the checksum sum of the file. As of Ansible 1.9 this
+        is no longer a MD5, but a SHA1 instead.
     required: false
     default: yes
     aliases: []
+  get_checksum:
+    description:
+      - Whether to return a checksum of the file
+        (only sha1 currently supported)
+    required: false
+    default: yes
+    version_added: "2.1"
 author: "Chris Church (@cchurch)"
 '''