--- a/src/input.cc	Mon Aug 15 01:39:26 1994 +0000
+++ b/src/input.cc	Mon Aug 15 04:16:43 1994 +0000
@@ -130,7 +130,8 @@
 // Nonzero means we are using readline.
 int using_readline = 1;
 
-// Nonzero means commands are echoed as they are executed (-x).
+// Nonzero means commands are echoed as they are executed.
+// (--echo-commands; -x).
 int echo_input = 0;
 
 // Nonzero means this is an interactive shell.

--- a/src/octave.cc	Mon Aug 15 01:39:26 1994 +0000
+++ b/src/octave.cc	Mon Aug 15 04:16:43 1994 +0000
@@ -92,10 +92,11 @@
 // Guess what?
 char *the_current_working_directory = 0;
 
-// Load path specified on command line.
+// Load path specified on command line.  (--path path; -p path)
 char *load_path = 0;
 
 // Name of the info file specified on command line.
+// (--info-file file; -i file)
 char *info_file = 0;
 
 // Name of the editor to be invoked by the edit_history command.
@@ -137,12 +138,14 @@
 }
 
 // Nonzero means we read ~/.octaverc and ./.octaverc.
+// (--norc; --ignore-init-file; -f)
 static int read_init_files = 1;
 
 // Nonzero means we printed messages about reading startup files.
 static int reading_startup_message_printed = 0;
 
 // Nonzero means we don\'t print the usual startup message.
+// (--quiet; --silent; -q)
 static int inhibit_startup_message = 0;
 
 // Usage message