mm, generic, x86 boot: more tweaks to hex prints of some pfn addresses

Fix some problems with (and applies on top of) a previous patch:
x86 boot: show pfn addresses in hex not decimal in some kernel info printks

Primarily change "0x%8lx" format, which displays with a right aligned
space filled hex number (spaces between the "0x" prefix and the number),
into "%0#10lx" format, which zero fills instead of space fills, and
which uses the printf flag '#' to request the "0x" prefix instead of
hard coding it.

Also replace some other "0x%lx" formats with "%#lx", making use of the
'#' printf flag again.

Signed-off-by: Paul Jackson <[e-mail]>
Cc: "Yinghai Lu" <[e-mail]>
Cc: "Jack Steiner" <[e-mail]>
Cc: "Mike Travis" <[e-mail]>
Cc: "Huang
Cc: Ying" <[e-mail]>
Cc: "Andi Kleen" <[e-mail]>
Cc: "Andrew Morton" <[e-mail]>
Cc: Paul Jackson <[e-mail]>
Signed-off-by: Ingo Molnar <[e-mail]>

arch/x86/kernel/e820.c

···
 	if (last_pfn > end_user_pfn)
 		last_pfn = end_user_pfn;
 
-	printk(KERN_INFO "last_pfn = 0x%lx max_arch_pfn = 0x%lx\n",
+	printk(KERN_INFO "last_pfn = %#lx max_arch_pfn = %#lx\n",
 			 last_pfn, max_arch_pfn);
 	return last_pfn;
 }

mm/page_alloc.c

···
 {
 	int i;
 
-	printk(KERN_DEBUG "Entering add_active_range(%d, 0x%lx, 0x%lx) "
+	printk(KERN_DEBUG "Entering add_active_range(%d, %#lx, %#lx) "
 			  "%d entries of %d used\n",
 			  nid, start_pfn, end_pfn,
 			  nr_nodemap_entries, MAX_ACTIVE_REGIONS);
···
 	for (i = 0; i < MAX_NR_ZONES; i++) {
 		if (i == ZONE_MOVABLE)
 			continue;
-		printk("  %-8s 0x%8lx -> 0x%8lx\n",
+		printk("  %-8s %0#10lx -> %0#10lx\n",
 				zone_names[i],
 				arch_zone_lowest_possible_pfn[i],
 				arch_zone_highest_possible_pfn[i]);
···
 	/* Print out the early_node_map[] */
 	printk("early_node_map[%d] active PFN ranges\n", nr_nodemap_entries);
 	for (i = 0; i < nr_nodemap_entries; i++)
-		printk("  %3d: 0x%8lx -> 0x%8lx\n", early_node_map[i].nid,
+		printk("  %3d: %0#10lx -> %0#10lx\n", early_node_map[i].nid,
 						early_node_map[i].start_pfn,
 						early_node_map[i].end_pfn);