Include build number in oops output

Helps me to match oopses to correct kernel.

Signed-off-by: Andi Kleen <ak@suse.de>

Index: linux/arch/x86_64/kernel/process.c
===================================================================
--- linux.orig/arch/x86_64/kernel/process.c
+++ linux/arch/x86_64/kernel/process.c
@@ -271,8 +271,11 @@ void __show_regs(struct pt_regs * regs)
 
 	printk("\n");
 	print_modules();
-	printk("Pid: %d, comm: %.20s %s %s\n", 
-	       current->pid, current->comm, print_tainted(), system_utsname.release);
+	printk("Pid: %d, comm: %.20s %s %s %.*s\n", 
+		current->pid, current->comm, print_tainted(), 
+		system_utsname.release, 
+		(int)strcspn(system_utsname.version, " "), 
+		system_utsname.version);
 	printk("RIP: %04lx:[<%016lx>] ", regs->cs & 0xffff, regs->rip);
 	printk_address(regs->rip); 
 	printk("\nRSP: %04lx:%016lx  EFLAGS: %08lx\n", regs->ss, regs->rsp, regs->eflags);