build: do root check before git check

otherwise, git could be initialised as root.

running as root is not allowed.

Signed-off-by: Leah Rowe <leah@libreboot.org>

build

@@ -30,13 +30,13 @@ main()
 
 	[ "$1" = "dependencies" ] && x_ install_packages $@ && return 0
 
+	[ "$(id -u)" != "0" ] || $err "this command as root is not permitted"
+
 	for g in "which git" "git config --global user.name" \
 	    "git config --global user.email" "git_init"; do
 		eval "$g 1>/dev/null 2>/dev/null || git_err \"$g\""
 	done
 
-	[ "$(id -u)" != "0" ] || $err "this command as root is not permitted"
-
 	case "${1}" in
 	version) printf "%s\n" "$relname" ;;
 	release) shift 1; mkrelease $@ ;;