shithub: neatroff

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tr: ignore .lf with no arguments

--- a/tr.c

+++ b/tr.c

@@ -504,7 +504,8 @@

 static void tr_lf(char **args)

 {

-	in_lf(args[2], eval(args[1], 0));

+	if (args[1])

+		in_lf(args[2], eval(args[1], 0));

 }

 static char *arg_regname(char *s, int len)