style: improve interpreter check command syntax

Author: haithium

scripts/build-and-test.sh

@@ -11,7 +11,7 @@ run_for() {
   interp=$1
   lua_version=$2
 
-  if ! command -v "$interp" >/dev/null 2>&1; then
+  if ! command -v "$interp" > /dev/null 2>&1; then
     printf 'skip %s: interpreter not found\n' "$interp"
     return 0
   fi