sh: Recognize "--" as end of options in type builtin.

This implementation makes minimal changes: command names starting with "-"
(other than "--") can still be queried normally.

1 files changed, 2 insertions, 0 deletions

diff --git a/bin/sh/exec.c b/bin/sh/exec.c
index 5f78de9..9f8e029 100644
--- a/bin/sh/exec.c
+++ b/bin/sh/exec.c
@@ -762,5 +762,7 @@ typecmd_impl(int argc, char **argv, int cmd, const char *path)
 int
 typecmd(int argc, char **argv)
 {
+	if (argc > 2 && strcmp(argv[1], "--") == 0)
+		argc--, argv++;
 	return typecmd_impl(argc, argv, TYPECMD_TYPE, bltinlookup("PATH", 1));
 }