usage text revisions

Move the mention of viewing usage info via 'nethack --usage | more'
to the end, where it should remain visible if text has scrolled off
the top of the screen (which is nearly certain since it ended up
being much longer than originally intended).

Also, rephrase the text at the start about restore vs new game since
the previous description said "in all cases" which isn't applicable
for 'nethack --scores' or --version or --showpaths or --usage.

Move 'nethack --usage' to last so that 'nethack --scores' is first
among the non-playing command variants since -s is of more interest.

For 'nethack --scores', move -v before the other options since it
has to be next after -s|--scores to be processed correctly.  Also,
avoid using "present" twice in the same sentence.

dat/usagehlp

@@ -2,11 +2,8 @@ This is a terse description of nethack's command line arguments.
 It is oriented toward UNIX (including descendants such as linux and
 macOS) and might not be accurate for other platforms.
 
-This text is available in the menu for the game's '?' command or can be
-viewed via 'nethack --usage | more' at the shell prompt.
-
-In all cases, if there is a save file for the chosen character name then
-it will be restored, otherwise a new game using that name will start.
+When starting play, if there is a save file for the chosen character name
+then it will be restored, otherwise a new game using that name will begin.
 
 nethack
   with no arguments; uses character name from run-time configuration file's
@@ -67,7 +64,7 @@ nethack --windowtype:Iii
   supports mswin only.  MS-DOS is tty only.
 
 nethack -n
-  don't show the 'news' file is one is present in nethack's directory.
+  don't show the 'news' file if one is present in nethack's directory.
 
 nethack --nethackrc:RC-file
   use RC-file instead of the default run-time configuration file (which is
@@ -90,15 +87,14 @@ they're listed separately for readability.
 Other options which perform some action and then exit rather than play
 the game:
 
-nethack --usage
-nethack --help
-  show this text; 'nethack ?' and 'nethack -?' might also work but the
-  question mark will need to be quoted to prevent the shell from attempting
-  filename matching.
-
 nethack -s
 nethack --scores
   show scores for the default character; optional additional arguments:
+nethack -s -v
+  show scores for all versions present in the high scores file (record)
+  if it contains scores for any older versions; by default, only scores
+  for current version of nethack are shown; when '-v' is used, it should
+  immediately follow -s or --scores, preceding any name(s) or -p or -r;
 nethack -s character-name [character-name2 [character-name3 [...]]]
   show scores for one or more specific character names (might not be
   effective if PERS_IS_UID=1 is specified in nethack's sysconf file);
@@ -109,14 +105,9 @@ nethack -s -p Ppp -r Rrr
   show scores for specific roles or races; multiple instances can be used;
   if both '-p' and '-r' are used, scores that match either will be shown
   rather than scores that match both;
-nethack -s -v
-  show scores for all versions present in the high scores file (record)
-  if scores for any older versions are present; by default, only scores
-  for current version of nethack are shown; when -v is used, it should
-  immediately follow -s or --scores, preceding any name(s) or -p or -r;
 nethack -dDir -s
 nethack --directory:Dir -s
-  as above; alternative directory, if specified, should come first.
+  as above; alternate directory, if specified, should come first.
 
 nethack --version
 nethack --version:paste
@@ -131,3 +122,13 @@ nethack --showpaths
   includes the name and location for the run-time configuration file which
   can vary from platform to platform.
 
+nethack --usage
+nethack --help
+  show this text; 'nethack -?' and 'nethack ?' also work but the question
+  mark may need to be quoted to prevent the shell from intercepting it.
+
+*******
+
+This text is available during play in the menu for the game's '?' command
+or can be viewed via 'nethack --usage | more' at the shell prompt.
+