xwarpptr.c: Add missing documentation for the `-r' option.

diff --git a/xwarpptr.c b/xwarpptr.c
index 92cd5c6..e16d5e7 100644 (file)
--- a/xwarpptr.c
+++ b/xwarpptr.c
@@ -45,7 +45,7 @@ static void version(void)
   { pquis(stdout, "$ version " VERSION "\n"); }
 
 static void usage(FILE *fp)
-  { pquis(fp, "Usage: $ [-d DISPLAY] X Y\n"); }
+  { pquis(fp, "Usage: $ [-r] [-d DISPLAY] X Y\n"); }
 
 static void help(void)
 {
@@ -60,7 +60,8 @@ Command-line options:\n\
 -v, --version                  Display program's version number.\n\
 -u, --usage                    Display short usage summary.\n\
 \n\
--d, --display=DISPLAY          Connect to X DISPLAY.\n",
+-d, --display=DISPLAY          Connect to X DISPLAY.\n\
+-r, --relative                 Move relative to its current position\n",
        stdout);
 }