diff -up ./contrib/xcscope/cscope-indexer.help ./contrib/xcscope/cscope-indexer

--- ./contrib/xcscope/cscope-indexer.help	2017-12-07 10:45:07.000000000 -0500

+++ ./contrib/xcscope/cscope-indexer	2019-06-24 15:46:31.484852474 -0400

@@ -80,6 +80,37 @@ RECURSE=

 VERBOSE=

 export DIR RECURSE			# Need to pass these to subprocesses

+show_usage() {

+

+cat << EOF

+

+     cscope-indexer [ -v ] [-f database_file ] [-i list_file ] [ -l ] [ -r ]

+

+ where:

+

+     -f database_file

+          Specifies the cscope database file (default: cscope.out).

+

+     -i list_file

+          Specifies the name of the file into which the list of files

+          to index is placed (default: cscope.files).

+

+     -l

+          Suppress the generation/updating of the cscope database

+          file.  Only a list of files is generated.

+

+     -r

+          Recurse into subdirectories to locate files to index.

+          Without this option, only the current directory is

+          searched.

+

+     -v

+          Be verbose.  Output simple progress messages.

+

+EOF

+

+}

+

 while [ -n "$1" ]

 do

     case "$1" in

@@ -110,6 +141,10 @@ do

     -v)

 	VERBOSE=1

 	;;

+    -h|--help)

+	show_usage

+	exit 0

+	;;

     *)

 	DIR="$1"

 	;;