doc: mention QUOTING_STYLE env var in ls man page

* src/ls.c (usage): Mention QUOTING_STYLE with the --quoting-style
option, and indicate it has lower precedence than that option.

diff --git a/src/ls.c b/src/ls.c
index 68ebffbefbadd061f908430ddc6d4f64235020a3..49e345aecaf3bb5042468c8b8b6d9e41d52c7216 100644 (file)
--- a/src/ls.c
+++ b/src/ls.c
@@ -5229,6 +5229,7 @@ Sort entries alphabetically if none of -cftuvSUX nor --sort is specified.\n\
       --quoting-style=WORD   use quoting style WORD for entry names:\n\
                                literal, locale, shell, shell-always,\n\
                                shell-escape, shell-escape-always, c, escape\n\
+                               (overrides QUOTING_STYLE environment variable)\n\
 "), stdout);
       fputs (_("\
   -r, --reverse              reverse order while sorting\n\