Fix typo

Author: james-otten

modules/post/multi/gather/azure_cli_creds.rb

@@ -75,7 +75,7 @@ def user_dirs
       grab_user_profiles.each do |profile|
         user_dirs.push(profile['ProfileDir'])
       end
-    elsif session.platform == 'linux' || session.platform === 'osx'
+    elsif session.platform == 'linux' || session.platform == 'osx'
       user_dirs = enum_user_directories
     else
       fail_with(Failure::BadConfig, "Unsupported platform")