Fix some errors in the documentation and other minor issues (#42)

Somewhat notable changes in this commit:
- The 'set +r' bugfix (re: 74b4162) is now documented in the
  changelog.
- Missing options have been added to the synopsis section of the
  ksh man page.
- The minor formatting fix from ksh-community/ksh#5
  has been applied to the ksh man page.
- A few fixes from att@5e747cfb
  have been applied to the ksh man page.
- The man page fixes from att#353
  have been applied, being:
  - An addition to document the behavior of 'set -H'.
  - A fix for the cd section appending rksh93.
  - A fix for some options being indented too far.
  - Removal of a duplicate section documenting '-D'.
  - Reordering the options for 'set' in alphabetical order.
  - A minor fix for the documentation of 'ksh -i'.

Author: JohnoKing

NEWS

@@ -45,8 +45,8 @@ Any uppercase BUG_* names are modernish shell bug IDs.
 
 - A two decade old bug that caused 'whence -a' to base the path of
   tracked aliases on the user's current working directory has been
-  fixed. Now the real path to the tracked aliases is shown when '-a'
-  is passed to the whence command.
+  fixed. Now the real path to tracked aliases is shown when '-a' is
+  passed to the whence command.
 
 2020-06-17:
 
@@ -120,6 +120,9 @@ Any uppercase BUG_* names are modernish shell bug IDs.
   shell's hash table. This fix applies to the hash utility and when the
   PATH is reset manually.
 
+- 'set +r' is no longer able to unset the restricted option. This change
+  makes the behavior of 'set +r' identical to 'set +o restricted'.
+
 2020-06-09:
 
 - The 'unalias' builtin will now return a non-zero status if it tries

lib/package/INIT.README

@@ -165,7 +165,7 @@ All recorded changes follow.
 10-06-25 package.sh: "force admin ditto" => no ditto --update option
 10-06-22 C+probe: handle cc that require .[ci] input for version info
 10-06-21 ditto.sh: change default remote access to ssh (about time)
-10-06-12 regress.sh: DISGNOSTICS [ 1 | 0 | pattern ] and fix EXIT for all
+10-06-12 regress.sh: DIAGNOSTICS [ 1 | 0 | pattern ] and fix EXIT for all
 10-06-09 package.sh: add AT&T to usable nmake check
 10-06-06 iffe.sh,iffe.tst: add { api ver } ops
 10-04-22 package.sh: update "html binary|source" NAME/PASSWORD info

lib/package/INIT.html

@@ -127,7 +127,7 @@
 10-06-25 package.sh: "force admin ditto" => no ditto --update option
 10-06-22 C+probe: handle cc that require .[ci] input for version info
 10-06-21 ditto.sh: change default remote access to ssh (about time)
-10-06-12 regress.sh: DISGNOSTICS [ 1 | 0 | pattern ] and fix EXIT for all
+10-06-12 regress.sh: DIAGNOSTICS [ 1 | 0 | pattern ] and fix EXIT for all
 10-06-09 package.sh: add AT&T to usable nmake check
 10-06-06 iffe.sh,iffe.tst: add { api ver } ops
 10-04-22 package.sh: update "html binary|source" NAME/PASSWORD info

src/cmd/INIT/RELEASE

@@ -70,7 +70,7 @@
 10-06-25 package.sh: "force admin ditto" => no ditto --update option
 10-06-22 C+probe: handle cc that require .[ci] input for version info
 10-06-21 ditto.sh: change default remote access to ssh (about time)
-10-06-12 regress.sh: DISGNOSTICS [ 1 | 0 | pattern ] and fix EXIT for all
+10-06-12 regress.sh: DIAGNOSTICS [ 1 | 0 | pattern ] and fix EXIT for all
 10-06-09 package.sh: add AT&T to usable nmake check
 10-06-06 iffe.sh,iffe.tst: add { api ver } ops
 10-04-22 package.sh: update "html binary|source" NAME/PASSWORD info

src/cmd/builtin/pty.c

@@ -33,7 +33,7 @@ USAGE_LICENSE
 "[+?Input to \bpty\b will be written to the standard input of this "
     "command. The standard output and standard error from the command will "
     "be written to the standard output of \bpty\b.]"
-"[+?The \bpty\b commmand terminates when the command completes.]"
+"[+?The \bpty\b command terminates when the command completes.]"
 "[d:dialogue?Execute the dialogue on the standard input. A dialogue is a "
     "sequence of commands, one command per line. All \are\a patterns are "
     "extended regular expressions. The \are\a \b?1\b will print the subject "
@@ -58,7 +58,7 @@ USAGE_LICENSE
         "[r [\are\a]]?read a line from the master [and it should match "
             "re]]]"
         "[s \amilliseconds\a?sleep for \amilliseconds\a]"
-        "[t \amilliseconds\a?set the master read timout to "
+        "[t \amilliseconds\a?set the master read timeout to "
             "\amilliseconds\a; the default is \b1000\b]"
         "[u \are\a?read lines from the master until one matches \are\a]"
         "[v \alevel\a?set the verbose trace \alevel\a, more output for "

src/cmd/ksh93/COMPATIBILITY

@@ -128,7 +128,7 @@ omitted features that are completely upward compatible.
 	The sequence escape control-v will display the shell version.
 
 29.	In ksh-88, DEBUG traps were executed. after each command.  In ksh-93
-	DEBUG traps are exeucted before each command.
+	DEBUG traps are executed before each command.
 
 30.	In ksh-88, a redirection to a file name given by an empty string was
 	ignored.  In ksh-93, this is an error.

src/cmd/ksh93/RELEASE88

@@ -157,7 +157,7 @@ of ksh.
 	8.  Variable .sh.version is set to the version string for
 	    this shell.
 	9.  Variable .sh.name is set to the name of the variable
-	    that that was referenced or assigned to when executing a get
+	    that was referenced or assigned to when executing a get
 	    or set discipline function.
 	10. Variable .sh.subscript is set to the subscript for the variable
 	    that was referenced or assign to when executing a get or

src/cmd/ksh93/bltins/enum.c

@@ -160,7 +160,7 @@ static void put_enum(Namval_t* np,const char *val,int flags,Namfun_t *fp)
 		i++;
 	}
 	if(nv_isattr(np,NV_NOFREE))
-		error(ERROR_exit(1), "%s:  invalid value %s",nv_name(np),val);
+		error(ERROR_exit(1), "%s: invalid value %s",nv_name(np),val);
 }
 
 static char* get_enum(register Namval_t* np, Namfun_t *fp)

src/cmd/ksh93/bltins/typeset.c

@@ -561,7 +561,7 @@ static int     setall(char **argv,register int flag,Dt_t *troot,struct tdata *tp
 			if(troot == shp->fun_tree)
 			{
 				/*
-				 *functions can be exported or
+				 * functions can be exported or
 				 * traced but not set
 				 */
 				flag &= ~NV_ASSIGN;

src/cmd/ksh93/data/builtins.c

@@ -940,7 +940,7 @@ const char sh_opthash[] =
 "\n"
 "[+EXIT STATUS?]{"
 	"[+0?Successful completion.]"
-	"[+>0?An error occured.]"
+	"[+>0?An error occurred.]"
 "}"
 "[+SEE ALSO?\bsh\b(1), \balias\b(1)]"
 ;