Synchronize the man page with the --help option

arc.bqn

@@ -11,11 +11,20 @@ opts←{
   _opt_←{ 𝔽_optl_𝔾 ⋈𝕩}
   {𝕤
     •Out "Usage: "∾•name∾" [OPTION]...
-  --help,-h: Display this help message
-  --levels,-l FILE: load levels from FILE 
-  --chars,-c STRING: Characters to display for each game object, needs to have length 15
-  --fchars,-f STRING: Characters to represent each game object in the levels file, needs to have length 15
-  --start,-s N: Start directly at level number N"
+  -h,--help
+         Displays a help message
+
+  -l,--levels FILE
+         Load levels from FILE.  (default: a file called “levels”).
+
+  -c,--chars string
+         Characters to display for each game object, needs to have length 15.  (default: ” λ$⊕⭍#/-|+<>^v”).
+
+  -f,--fchars string
+         Characters to represent each game object in the levels file, needs to have length 15.  (default: ” @$o⭍#/-|+<>^v”).
+
+  -s,--start N
+              Start directly at level number N.  (default: 1)."
     •Exit 0
   }⍟∨´"-h"‿"--help"∊a