Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Set "max" to a reasonable value if BLOCKSIZE has a bogus unit. Prior
to this commit, "env BLOCKSIZE=4X df" prints not only "4X: unknown
blocksize" as expected, but sometimes also "maximum blocksize is 1G"
and "minimum blocksize is 512" depending on what happened to be on
the stack.

Found by: LLVM/Clang Static Checker

Per Regents of the University of Calfornia letter, remove advertising
clause.

# If I've done so improperly on a file, please let me know.

A better rationale justifying rev 1.6 is to support field widths of
SIZE_T_MAX characters in the header that reports block sizes. A field
width of 2^64 won't be needed until block sizes reach approximately 10^(2^64).
It really has nothing to do with supporting block sizes of 2^64.

As told by: bde

Back out the s/int */size_t */ commit.
It makes a difference on 64-bit arches, and no one really wants a 2^64
block size [yet].

Make the first argument of getbsize a size_t* instead of an int*, as this is what the quantity actually is. Fix an easy const while I'm here.

Fix the style of the SCM ID's.
I believe have made all of libc .c's as consistent as possible.

Fixed printf format errors.

Fixed printf format errors.

This commit was generated by cvs2svn to compensate for changes in r1573,
which included commits to RCS files with non-trunk default branches.

BSD 4.4 Lite Lib Sources