ash: expand comment

diff --git a/shell/ash.c b/shell/ash.c
index bf7afaba09e0a9d631eb17a6d00c7520cc96722b..13b4329b55f25fc433d6473754f21e65f236370f 100644 (file)
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -13878,7 +13878,8 @@ int ash_main(int argc UNUSED_PARAM, char **argv)
        if (minusc) {
                /* evalstring pushes parsefile stack.
                 * Ensure we don't falsely claim that 0 (stdin)
-                * is one of stacked source fds */
+                * is one of stacked source fds.
+                * Testcase: ash -c 'exec 1>&0' must not complain. */
                if (!sflag)
                        g_parsefile->fd = -1;
                evalstring(minusc, 0);