doc: state in ls --help, that -h affects --size format

* src/ls.c (usage): State that --human changes --size format.
Fixes http://bugs.gnu.org/17838

1 files changed, 1 insertions, 1 deletions

diff --git a/src/ls.c b/src/ls.c
index 25e10fa74..54c6705f1 100644
--- a/src/ls.c
+++ b/src/ls.c
@@ -4828,7 +4828,7 @@ Sort entries alphabetically if none of -cftuvSUX nor --sort is specified.\n\
 "), stdout);
       fputs (_("\
   -G, --no-group             in a long listing, don't print group names\n\
-  -h, --human-readable       with -l, print sizes in human readable format\n\
+  -h, --human-readable       with -l and/or -s, print human readable sizes\n\
                                (e.g., 1K 234M 2G)\n\
       --si                   likewise, but use powers of 1000 not 1024\n\
 "), stdout);