Merge pull request #299 from ichiban/fix-1pl-file-args

fix 1pl's file arguments like `$ 1pl foo.pl bar.pl`

cmd/1pl/main.go

@@ -78,7 +78,7 @@ Type Ctrl-C or 'halt.' to exit.
 	}
 
 	// Consult arguments.
-	if err := i.QuerySolution(`consult(?).`, flag.Args()).Err(); err != nil {
+	if err := i.QuerySolution(`bagof(F, (member(X, ?), atom_chars(F, X)), Fs), consult(Fs).`, flag.Args()).Err(); err != nil {
 		log.Panic(err)
 	}