Use uprintf instead of printf for the reason why a kernel module can not

be loaded.  This way, the administrator can get response immediately from
the shell session rather than relying on dmesg.

MFC after:	1 month

sys/kern/kern_linker.c

@@ -2115,7 +2115,7 @@ linker_load_dependencies(linker_file_t lf)
 		}
 		error = linker_load_module(NULL, modname, lf, verinfo, NULL);
 		if (error) {
-			printf("KLD %s: depends on %s - not available or"
+			uprintf("KLD %s: depends on %s - not available or"
 			    " version mismatch\n", lf->filename, modname);
 			break;
 		}