File fix_return.patch of Package libcerf

--- lib/width.c.orig	2021-12-06 17:02:13.721253753 -0700
+++ lib/width.c	2021-12-06 17:02:49.627449182 -0700
@@ -120,4 +120,5 @@
 	}
     }
     assert(0); /* One should never arrive here */
+    return 0;
 }