bug#19969: problem: wc -c doesn't read actual # of bytes in file

[Linda Walsh]

(coreutils-8.21-7.7.7)

wc -c(bytes) doesn't seem to reliably read the number
of bytes in a file.

I was wanting to find out what the largest data-source
files in '/proc' and '/sys' (didn't get around to trying
/sys, since all the files under /proc/sys return 0 bytes.

Note -- "wc -l" doesn't return '0' on the /proc/sys files.

As root:
# cd /proc
# find -H [^0-9]* -name self -prune -o -name thread-self -prune -o -type 
f ! -name kmsg ! -name kcore ! -name kpagecount ! -name kpageflags 
-print0|wc -c --files0-from=- |sort -n