usctest.h: Remove useless workaround.

All sources that use _SC_CLK_TCK include unistd.h anyway.

Signed-off-by: Cyril Hrubis <chrubis@suse.cz>
usctest.h: Remove unused TEST_PAUSEF macro

Looking at the code, it would fail to link anyway (because there doesn't
seem to be declared _TMP_FUNC anywhere in the libltp).

Signed-off-by: Cyril Hrubis <chrubis@suse.cz>
usctest.h, parse_opts.c: More cleanup.

* Remove internal STD_go() and STD_opts_help() functions from header
  and declare them as static in source

* Constify return value from parse_opts

* Add void to functions without any parameters

* Do a bit of cleanup
  - remove useless comments
  - remove redundand ifdefs
  - fix a few whitespaces

Signed-off-by: Cyril Hrubis <chrubis@suse.cz>
usctest.h, parse_opts.c: Hide unused variables.

Hide all unused variables from usctest.h and declare them static in
parse_opts.c.

Full list is:

STD_PAUSE
STD_INFINITE
STD_argind
STD_LOOP_DURATION
STD_LOOP_DELAY

Also removes unused STD_nopts from parse_opts.c completly and decleare
std_option_t as static.

Signed-off-by: Cyril Hrubis <chrubis@suse.cz>
parse_opts.c: More cleanup.

* Get rid of DEBUG ifdefs

* Move USC_COPIES to ltp_priv.h (where rest of the constats is)

Signed-off-by: Cyril Hrubis <chrubis@suse.cz>