common: use tabs everywhere.

Didn't generally fixup inside comments and the bech32 code: reformatting that
is just anti-social.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

common/daemon.c

@@ -149,7 +149,7 @@ void daemon_setup(const char *argv0,
 	 * not start if it cannot do its job correctly. */
 	if (sodium_init() == -1)
 		errx(1, "Could not initialize libsodium. Maybe not enough entropy"
-		         " available ?");
+		     " available ?");
 
 	/* We handle write returning errors! */
 	signal(SIGPIPE, SIG_IGN);