use command(1) to get executable's path

cdist/conf/type/__user/explorer/group

@@ -23,8 +23,9 @@
 
 if [ -f "$__object/parameter/gid" ]; then
    gid=$(cat "$__object/parameter/gid")
-   if [ -x /usr/bin/getent ] || [ -x /bin/getent ]; then
-      getent group "$gid" || true
+   getent=$(command -v getent)
+   if [ X != X"${getent}" ]; then
+      "${getent}" group "$gid" || true
    elif [ -f /etc/group ]; then
       grep -E "^(${gid}|([^:]+:){2}${gid}):" /etc/group || true
    fi

cdist/conf/type/__user/explorer/passwd

@@ -23,8 +23,9 @@
 
 name=$__object_id
 
-if [ -x /usr/bin/getent ] || [ -x /bin/getent ]; then
-  getent passwd "$name" || true
+getent=$(command -v getent)
+if [ X != X"${getent}" ]; then
+  "${getent}" passwd "$name" || true
 elif [ -f /etc/passwd ]; then
   grep "^${name}:" /etc/passwd || true
 fi

cdist/conf/type/__user/explorer/shadow

@@ -31,8 +31,9 @@ case "$os" in
 esac
   
 
-if [ -x /usr/bin/getent ] || [ -x /bin/getent ]; then
-  getent "$database" "$name" || true
+getent=$(command -v getent)
+if [ X != X"${getent}" ]; then
+  "${getent}" "$database" "$name" || true
 elif [ -f /etc/shadow ]; then
   grep "^${name}:" /etc/shadow || true
 fi