Build break for port vax - makefs

[Paul Goyette <paul%whooppee.com@localhost>]

With sources updated on 2013-01-29 at 14:36:51 UTC, a 'build.sh release' 
for vax fails with the following error:

#   compile  makefs/msdosfs_vnops.o
/build/netbsd-local/tools/x86_64/vax/bin/vax--netbsdelf-gcc -O1 -fgcse 
-fstrength-reduce -fgcse-after-reload  -std=gnu99  -Wall -Wstrict-prototypes 
-Wmissing-prototypes -Wpointer-arith -Wno-sign-compare  -Wno-traditional  
-Wa,--fatal-warnings -Wreturn-type -Wswitch -Wshadow -Wcast-qual 
-Wwrite-strings -Wextra -Wno-unused-parameter -Wno-sign-compare 
-Wold-style-definition -Wsign-compare -Wformat=2   -Wno-format-zero-length  
-Werror    --sysroot=/build/netbsd-local/dest/vax 
-I/build/netbsd-local/src/usr.sbin/makefs -I/build/netbsd-local/src/sbin/mknod 
-I/build/netbsd-local/src/usr.sbin/mtree -DMAKEFS 
-I/build/netbsd-local/src/sys/fs/cd9660 -I/build/netbsd-local/src/sys/ufs/chfs 
-DV7FS_EI -I/build/netbsd-local/src/sys/fs/v7fs 
-I/build/netbsd-local/src/sbin/newfs_v7fs -I/build/netbsd-local/src/sbin/fsck 
-DMSDOS_EI -I/build/netbsd-local/src/sys/fs/msdosfs 
-I/build/netbsd-local/src/sbin/newfs_msdos -I/build/netbsd-local/src/sys  -c    
/build/netbsd-local/src/usr.sbin/makefs/msdos/msdosfs_vnops.c
cc1: warnings being treated as errors
/build/netbsd-local/src/usr.sbin/makefs/msdos/msdosfs_vnops.c: In function 
'msdosfs_mkfile':
/build/netbsd-local/src/usr.sbin/makefs/msdos/msdosfs_vnops.c:420: warning: 
'error' may be used uninitialized in this function
*** [msdosfs_vnops.o] Error code 1
nbmake: stopped in /build/netbsd-local/src/usr.sbin/makefs

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