Bug 807525 - Have embedjs.py append newlines when not present. (r=till)

js/src/builtin/embedjs.py

@@ -17,7 +17,7 @@ def replaceErrorMsgs(source_files, messages_file, output_file):
         if len(source_files) == 0:
             return
         for line in fileinput.input(source_files):
-            output.write(replaceMessages(line, messages))
+            output.write(replaceMessages(line if line[-1] == '\n' else line + '\n', messages))
 
 def buildMessagesTable(messages_file):
     table = {}
@@ -48,4 +48,4 @@ def main():
     js2c.JS2C([combined_file, macros_file], [output_file], { 'TYPE': 'CORE', 'COMPRESSION': 'off', 'DEBUG':debug })
 
 if __name__ == "__main__":
-    main()
+    main()