typo: removed -> removes

ok guenther jmc

check_sym: adjust logic not to exit 1 in the default dynamic mode

ok guenther

Support describing ABI changes for static libraries too.
Try the -S option

By default, put intermediate files in a temp dir and remove it on
completion. To leave files in /tmp, use new -k option.

The mips64 symbol table layout means we have to consider symbol visibility
and skip 'protected' symbols when identifying which functions will be
subjects of lazy resolution

Get the architecture from the ELF header instead of running uname,
so that we can operate on libs from other archs

Move the "data object size changes" into the "Dynamic export changes"
section for consistency

based on diff from jca@

Report changes in the size of data symbols, which require a major bump

Improve comment grammar

Use getopts for option parsing
Add -v for verbose (relocation) output
Fix an existence check

Simplify mips64 GOTSYM bits to eliminate a couple temp files
Remove extra file truncation that the at-start bits rendered superfluous

Add copyright

Add $OpenBSD tag

Add check_sym, a utility for checking shared libraries for symbol changes
that may require version bumps...or fixing. Details in comments at the
top of the script.

ok mpi@ millert@ deraadt@