Use tabs instead of spaces for indentation

This completes our switch to the Linux kernel coding style. Note that we
still use deeply nested constructs at some places which need to be fixed
up later.

Converted using the `Lindent` script from the Linux kernel code base,
along with some manual fixes.

Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>

src/htable.h

@@ -69,7 +69,7 @@ struct name {                                                                 \
 }
 
 #define HTABLE_ENTRY(type)                                                    \
-struct type   *next             /* To build the bucket chain list. */
+struct type   *next		/* To build the bucket chain list. */
 
 #define HTABLE_SIZE(head)                                                     \
   (sizeof (*(head)->bkts) ? sizeof ((head)->bkts) / sizeof (*(head)->bkts) : 0)