Fix regression introduced by forgotten file usage

There was two forgotten file instances. Fix error such as:

  /root/tmp/rpm-tmp.80ZNEF: line 1: /usr/sbin/post_service: No such file or directory
  error: %post(traefik-2.4.14-alt1.x86_64) scriptlet failed, exit status 127
  error: traefik-2.4.14-alt1.x86_64: install failed

Fixes: 5ef5c8ff4 ("Use file4 instead of file")

scripts/find-scriptlet-requires.in

@@ -17,7 +17,7 @@ RunMethod()
 	local filter="$exe".files
 	[ -x "$filter" ] || return 0
 	local file_and_type
-	file_and_type=$(file -L -NF$'\t' "$script")
+	file_and_type=$(file4 -L -NF$'\t' "$script")
 	local filtered
 	filtered=$(printf '%s\n' "$file_and_type" |"$filter") ||
 		Fatal "$filter failed"

scripts/verify-elf.in

@@ -318,7 +318,7 @@ VerifyELF()
 		return
 	fi
 
-	if ! t=$(file -b "$f"); then
+	if ! t=$(file4 -b "$f"); then
 		error_relaxed ANY "$f" 'file type not available'
 		return
 	fi