Fix command

Author: jspringe

.appveyor.yml

@@ -56,11 +56,11 @@ install:
   - cd c:\projects\wmi-scripting
 
   - IF "%DEPLOY_DOCS%" == "true" (
-      powershell -command "
-        $fileContent = '-----BEGIN RSA PRIVATE KEY-----`n'
-        $fileContent += $env:priv_key.Replace(' ', '`n')
-        $fileContent += '`n-----END RSA PRIVATE KEY-----`n'
-        Set-Content $env:userprofile\.ssh\id_rsa $fileContent" &&
+      powershell -command "&{
+        $fileContent = '-----BEGIN RSA PRIVATE KEY-----`n';
+        $fileContent += $env:priv_key.Replace(' ', '`n');
+        $fileContent += '`n-----END RSA PRIVATE KEY-----`n';
+        Set-Content $env:userprofile\.ssh\id_rsa $fileContent }" &&
       git submodule update --init --recursive &&
       git config --global user.email "%GIT_EMAIL%" &&
       git config --global user.name "%GIT_EMAIL%" &&