Do not use '#endif/#else xxx'; it is not allowed for ANSI C

util/led/assert.h

@@ -9,14 +9,14 @@
 
 #define assert(ex)
 
-#else NASSERT
+#else /* NASSERT */
 
 #define assert(ex) \
 {if (!(ex)) fatal("Assertion failed: file %s, line %d", __FILE__, __LINE__);}
 
-#endif NASSERT
-#else lint
+#endif /* NASSERT */
+#else /* lint */
 
 #define assert(ex)
 
-#endif lint
+#endif /* lint */