2 files changed, 4 insertions, 1 deletions

diff --git a/include/libbb.h b/include/libbb.h
index a32e6154c..4293ae269 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -443,7 +443,10 @@ struct bb_uidgid_t {
         uid_t uid;
         gid_t gid;
 };
+/* always sets uid and gid */
 int get_uidgid(struct bb_uidgid_t*, const char*, int numeric_ok);
+/* chown-like handling of "user[:[group]" */
+void parse_chown_usergroup_or_die(struct bb_uidgid_t *u, char *user_group);
 /* what is this? */
 /*extern char *bb_getug(char *buffer, char *idname, long id, int bufsize, char prefix);*/
 char *bb_getpwuid(char *name, long uid, int bufsize);
diff --git a/include/usage.h b/include/usage.h
index 52f972038..04dddd7c3 100644
--- a/include/usage.h
+++ b/include/usage.h
@@ -2893,7 +2893,7 @@
        "\n      -N|--nicelevel <N>              Add N to process's nice level" \
         ) \
        "\n      -s|--signal <signal>            Signal to send (default TERM)" \
-       "\n      -U|--chuid <username>|<uid>     Start process with this name"
+       "\n      -c|--chuid <user>[:[<group>]]   Change to specified user/group"
 
 #define stat_trivial_usage \
        "[OPTION] FILE..."