Fix typo stopping compilation

1c74eedc · Peter W. Draper · e1db896f · 1c74eedc
Commit 1c74eedc authored Nov 01, 2016 by Peter W. Draper
--- a/src/sourceterms/sn_feedback/sn_feedback_struct.h
+++ b/src/sourceterms/sn_feedback/sn_feedback_struct.h
@@ -42,4 +42,4 @@ struct supernova_struct {
  double x, y, z;
  enum supernova_status status;
 };
-#endif SWIFT_SN_FEEDBACK_STRUCT_H
+#endif /* SWIFT_SN_FEEDBACK_STRUCT_H */