less: accept and ignore -s

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 11 insertions, 6 deletions

diff --git a/miscutils/less.c b/miscutils/less.c
index 60105f42b..574f222e0 100644
--- a/miscutils/less.c
+++ b/miscutils/less.c
@@ -98,16 +98,18 @@
 //config:         Enables "-N" command.
 
 //usage:#define less_trivial_usage
-//usage:       "[-E" IF_FEATURE_LESS_FLAGS("Mm") "Nh~I?] [FILE]..."
+//usage:       "[-E" IF_FEATURE_LESS_REGEXP("I")IF_FEATURE_LESS_FLAGS("Mm") "Nh~] [FILE]..."
 //usage:#define less_full_usage "\n\n"
 //usage:       "View FILE (or stdin) one screenful at a time\n"
 //usage:     "\n        -E      Quit once the end of a file is reached"
+//usage:        IF_FEATURE_LESS_REGEXP(
+//usage:     "\n        -I      Ignore case in all searches"
+//usage:        )
 //usage:        IF_FEATURE_LESS_FLAGS(
 //usage:     "\n        -M,-m   Display status line with line numbers"
 //usage:     "\n                and percentage through the file"
 //usage:        )
 //usage:     "\n        -N      Prefix line number to each line"
-//usage:     "\n        -I      Ignore case in all searches"
 //usage:     "\n        -~      Suppress ~s displayed past EOF"
 
 #include <sched.h>  /* sched_yield() */
@@ -1613,10 +1615,13 @@ int less_main(int argc, char **argv)
 
         INIT_G();
 
-        /* TODO: -x: do not interpret backspace, -xx: tab also */
-        /* -xxx: newline also */
-        /* -w N: assume width N (-xxx -w 32: hex viewer of sorts) */
-        getopt32(argv, "EMmN~I" IF_FEATURE_LESS_DASHCMD("S"));
+        /* TODO: -x: do not interpret backspace, -xx: tab also
+         * -xxx: newline also
+         * -w N: assume width N (-xxx -w 32: hex viewer of sorts)
+         * -s: condense many empty lines to one
+         *     (used by some setups for manpage display)
+         */
+        getopt32(argv, "EMmN~I" IF_FEATURE_LESS_DASHCMD("S") /*ignored:*/"s");
         argc -= optind;
         argv += optind;
         num_files = argc;