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-rw-r--r--include/usage.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/usage.h b/include/usage.h
index 81f0e1d6d..e6287c8a3 100644
--- a/include/usage.h
+++ b/include/usage.h
@@ -2814,7 +2814,9 @@
#define su_full_usage \
"Change user id or become root.\n" \
"Options:\n" \
- "\t-p\tPreserve environment"
+ "\t-p, -m\tPreserve environment" \
+ "\n\t-c\tCommand to pass to 'sh -c'" \
+ "\n\t-s\tShell to use instead of default shell"
#define sulogin_trivial_usage \
"[OPTION]... [tty-device]"