More langtool improvements

assets/locale/en_US.po

@@ -1,8 +1,9 @@
+#
 msgid ""
 msgstr ""
-"Language: en_US"
-"Content-Type: text/plain; charset=UTF-8"
-"Plural-Forms: nplurals=2; plural=(n != 1);"
+"Language: en_US\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Plural-Forms: nplurals=2; plural=(n != 1);\n"
 
 msgid "ui.test"
 msgstr "Hello this is a test."
@@ -12,4 +13,3 @@ msgstr "This is a map test."
 
 msgid "test.test2"
 msgstr "This is another test."
-