Fix #66: Align man page with help text

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>

light.1

@@ -7,12 +7,8 @@
 .Nd a program to control backlight controllers
 .Sh SYNOPSIS
 .Nm light
-.Op Fl abcGhHkIlLmOprV
-.Op Fl s Ar ARG
-.Op Fl v Ar LEVEL
-.Op Fl A Ar VAL
-.Op Fl S Ar VAL
-.Op Fl U Ar VAL
+.Op Ar OPTIONS
+.Op Ar VALUE
 .Sh DESCRIPTION
 .Nm
 is a program to control backlight display and keyboard controllers under
@@ -32,7 +28,7 @@ the display to be pitch black at a vaĺue of 0 (or higher)
 The following unique commands are supported:
 .Pp
 .Bl -tag -width Ds
-.It Fl A Ar VAL
+.It Fl A
 Add value
 .It Fl G
 Get value, default
@@ -44,9 +40,9 @@ Restore brightness
 List controllers
 .It Fl O
 Save brightness
-.It Fl S Ar VAL
+.It Fl S
 Set value
-.It Fl U Ar VAL
+.It Fl U
 Subtract value
 .It Fl V
 Show program version and exit
@@ -70,7 +66,7 @@ Act on keyboard backlight
 .It Fl l
 Act on display backlight, default
 .It Fl m
-Get 
+Get
 .Fl G
 maximum brightness
 .It Fl c
@@ -114,7 +110,7 @@ In its non-priviliged mode of operation the
 .Pa ~/.cache/light
 directory is used instead.
 .Sh AUTHORS
-Copyright \(co 2014 Fredrik Haikarainen
+Copyright \(co 2014-2018 Fredrik Haikarainen
 .Pp
 This is free software, see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE