Fix up shellcheck issues

The mechanism used to convert bats tests to something shellcheck can
verify caused a large number of failures due to the introduction of
testing for if a call is possible. Given the tests aren't called in
a normal shell script way, it is best to just ignore this error for
bats files.

Also fix an index using '$' unnecessarily.

Signed-off-by: William Douglas <william.douglas@intel.com>

scripts/shellcheck.bash

@@ -27,7 +27,7 @@ file="$1"
 if [[ "${file/*./}" == "bats" ]]; then
 	sed 's/^@.*/func() {/' "$file" |
 	sed 's/^load.*/source test\/functional\/testlib.bash/' |
-	shellcheck -s bash -x -e SC1008,SC2119 /dev/stdin
+	shellcheck -s bash -x -e SC1008,SC2119,SC2317 /dev/stdin
 else
 	shellcheck -x "$file" -e SC2119
 fi

test/real_content/real_content_lib.bash

@@ -133,7 +133,7 @@ test_setup() {
 			continue
 		fi
 
-		VERSION[$i]=$v
+		VERSION[i]=$v
 		i=$((i+1))
 	done