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/blockdata.c

@@ -174,4 +174,3 @@ struct blockdata *blockdata_read(int fd, size_t len)
 {
   return blockdata_alloc_real(fd, NULL, len);
 }
-