1 files changed, 7 insertions, 5 deletions

diff --git a/coreutils/env.c b/coreutils/env.c
index c37c0c2df..4715bf73a 100644
--- a/coreutils/env.c
+++ b/coreutils/env.c
@@ -39,12 +39,14 @@
 /* http://www.opengroup.org/onlinepubs/007904975/utilities/env.html */
 
 //usage:#define env_trivial_usage
-//usage:       "[-iu] [-] [name=value]... [PROG ARGS]"
+//usage:       "[-i] [-u NAME]... [-] [NAME=VALUE]... [PROG ARGS]"
+// The "-" can occur only once (unlike, say, -i): it terminates option processing,
+// so if it is followed by another "-" arg (or any option-looking arg),
+// that arg will be taken as PROG (or even as NAME=VALUE, example: "-z=QWE").
 //usage:#define env_full_usage "\n\n"
-//usage:       "Print the current environment or run PROG after setting up\n"
-//usage:       "the specified environment\n"
-//usage:     "\n        -, -i   Start with an empty environment"
-//usage:     "\n        -u      Remove variable from the environment"
+//usage:       "Print current environment or run PROG after setting up environment\n"
+//usage:     "\n        -, -i   Start with empty environment"
+//usage:     "\n        -u NAME Remove variable from environment"
 
 #include "libbb.h"