logextract: Make sure config files end with a newline

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

scripts/logextract.py

@@ -41,7 +41,7 @@ class GatherConfig:
             self.comments.append(comment)
     def write_file(self):
         f = open(self.filename, 'wb')
-        f.write('\n'.join(self.comments + self.config_lines))
+        f.write('\n'.join(self.comments + self.config_lines).strip() + '\n')
         f.close()