001+ You can use -R or -F only once.
002+ NULL
003+ You can use -R or -F only once.
004+ NULL
005+ You can use -R or -F only once.
006+ NULL
007+ You can use -R or -F only once.
008+ NULL
009+ You can use -f only once.
010+ NULL
011+ You can use -B only once.
012+ NULL
013+ You can use -E only once.
014+ NULL
015+ You can use -r only once.
016+ NULL
001- string(32) "You can use -R or -F only once.
002- "
003- string(32) "You can use -R or -F only once.
004- "
005- string(32) "You can use -R or -F only once.
006- "
007- string(32) "You can use -R or -F only once.
008- "
009- string(26) "You can use -f only once.
010- "
011- string(26) "You can use -B only once.
012- "
013- string(26) "You can use -E only once.
014- "
015- string(26) "You can use -r only once.
016- "