printenv: say what it does when variables are specified

diff --git a/src/printenv.c b/src/printenv.c
index b68fb219bd8a0934b200d9648b9a2d44616c2ca0..ecb6593dd7eaa7bc3226b53565e34fc3523169f3 100644 (file)
--- a/src/printenv.c
+++ b/src/printenv.c
@@ -58,7 +58,8 @@ usage (int status)
       printf (_("\
 Usage: %s [VARIABLE]...\n\
   or:  %s OPTION\n\
-If no environment VARIABLE specified, print them all.\n\
+Print the values of the specified environment VARIABLE(s).\n\
+If no VARIABLE is specified, print name and value pairs for them all.\n\
 \n\
 "),
              program_name, program_name);