Quick fix to yay -G error code #430

Signed-off-by: Jguer <me@jguer.space>

download.go

@@ -181,6 +181,10 @@ func getPkgbuildsfromAUR(pkgs []string, dir string) (err error) {
 		return err
 	}
 
+	if (len(aq) != len(pkgs)) {
+		return fmt.Errorf("Could not find all required packages");
+	}
+
 	for _, pkg := range aq {
 		var err error
 		if shouldUseGit(filepath.Join(dir, pkg.PackageBase)) {