- Document -m, -c, -s and provide a default shell for standalone build.

- Wrap overlong lines plus a few whitespace fixes.
- add GPL header.

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]"