git: kernel: Serial numbers have to be either 2 chars minimum or not be a blank.

[Sascha Wildner <swildner@xxxxxxxxxxxxxxxxxxxxxxx>]

commit 5300ce8faa3455d2c52c1a6b0b17e45f9a0249ca
Author: Sascha Wildner <saw@online.de>
Date:   Wed Dec 8 01:50:07 2010 +0100

    kernel: Serial numbers have to be either 2 chars minimum or not be a blank.
    
    The hptiop(4) controller's logical disks have a " " (single space)
    serial number, which caused /dev/serno/_ to be created.

Summary of changes:
 sys/kern/subr_disk.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/5300ce8faa3455d2c52c1a6b0b17e45f9a0249ca


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