"one\ntwo\nthree\n" ""
rm file1
+testing "-c 3" "head -c 3" "one" "" "one\ntwo"
+testing "-c bigger than input" "head -c 3" "a" "" "a"
+testing "-c 3 -n 1" "head -c 3 -n 1" "one\n" "" "one\ntwo"
+testing "-n 1 -c 3" "head -n 1 -c 3" "one" "" "one\ntwo"