[PALEMOON] Override Windows Installer usage of MOZ_APP_DISPLAYNAME when appropriate

application/palemoon/installer/windows/moz.build

@@ -4,8 +4,12 @@
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
-DEFINES['APP_VERSION'] = CONFIG['MOZ_APP_VERSION']
-
 DEFINES['MOZ_APP_NAME'] = CONFIG['MOZ_APP_NAME']
-DEFINES['MOZ_APP_DISPLAYNAME'] = CONFIG['MOZ_APP_DISPLAYNAME']
+DEFINES['APP_VERSION'] = CONFIG['MOZ_APP_VERSION']
 DEFINES['MOZILLA_VERSION'] = CONFIG['MOZILLA_VERSION']
+
+if CONFIG['MOZ_APP_DISPLAYNAME'] in ('PaleMoon', 'Palemoon'):
+  DEFINES['MOZ_APP_DISPLAYNAME'] = "Pale Moon"
+else:
+  DEFINES['MOZ_APP_DISPLAYNAME'] = CONFIG['MOZ_APP_DISPLAYNAME']
+