Attempt to conditionally deploy docs

Author: jspringe

.appveyor.yml

@@ -57,9 +57,9 @@ install:
 
   - 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`"
+        $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%" &&