git: fdisk(8): Improve summary show of unintialized disk

[Aaron LI]

commit 00e1ead7f2c1090e0d54290193f1e2567b1be919
Author: Aaron LI <aly at aaronly.me>
Date:   Thu May 8 16:26:24 2025 +0800

    fdisk(8): Improve summary show of unintialized disk
    
    For an unintialized disk, "fdisk -s" would simply exit an error without
    printing any useful information, e.g.,
    
    	# fdisk -s vbd0
    	fdisk: invalid fdisk partition table found
    	fdisk: read_s0: Undefined error: 0
    
    This change makes "fdisk -s" print the geometry of the disk before
    exiting.  In addition, check the "errno" value to avoid the confusing
    "read_s0: Undefined error: 0" message.
    
    Derived from the patch submitted by mikdusan in bug #3369.
    
    Bug: https://bugs.dragonflybsd.org/issues/3369

Summary of changes:
 sbin/fdisk/fdisk.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/00e1ead7f2c1090e0d54290193f1e2567b1be919


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