Chomp file ends

Removed empty lines from end of src/*.[ch] files.
If the new last line became '#endif'
was the condition of the '#if' added.

src/auth.c

@@ -867,6 +867,3 @@ size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, time_t n
 }
   
 #endif  
-  
-
-