trylink: produce even more info about final link stage

trylink: explain how to modify link and drastically decrease amount
  of padding (unfortunately, needs hand editing ATM).
*: add ALIGN1 / ALIGN2 to global strings and arrays of bytes and shorts

size saving: 0.5k

networking/udhcp/common.c

@@ -6,4 +6,6 @@
 
 #include "common.h"
 
-const uint8_t MAC_BCAST_ADDR[6] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
+const uint8_t MAC_BCAST_ADDR[6] ALIGN2 = {
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+};

networking/udhcp/dhcpc.c

@@ -180,7 +180,7 @@ int udhcpc_main(int argc, char **argv)
 		OPT_v = 1 << 17,
 	};
 #if ENABLE_GETOPT_LONG
-	static const char udhcpc_longopts[] =
+	static const char udhcpc_longopts[] ALIGN1 =
 		"clientid\0"      Required_argument "c"
 		"clientid-none\0" No_argument       "C"
 		"vendorclass\0"   Required_argument "V"

networking/udhcp/dumpleases.c

@@ -24,7 +24,7 @@ int dumpleases_main(int argc, char **argv)
 		OPT_f	= 0x4,	// -f
 	};
 #if ENABLE_GETOPT_LONG
-	static const char dumpleases_longopts[] =
+	static const char dumpleases_longopts[] ALIGN1 =
 		"absolute\0"  No_argument       "a"
 		"remaining\0" No_argument       "r"
 		"file\0"      Required_argument "f"

networking/udhcp/options.c

@@ -52,7 +52,7 @@ const struct dhcp_option dhcp_options[] = {
 };
 
 /* Lengths of the different option types */
-const unsigned char option_lengths[] = {
+const unsigned char option_lengths[] ALIGN1 = {
 	[OPTION_IP] =      4,
 	[OPTION_IP_PAIR] = 8,
 	[OPTION_BOOLEAN] = 1,