fix some bugs.

bin/csh/csh.1

@@ -1,4 +1,4 @@
-.\"	$NetBSD: csh.1,v 1.18 1998/05/28 14:56:42 msaitoh Exp $
+.\"	$NetBSD: csh.1,v 1.19 1998/06/11 00:58:31 msaitoh Exp $
 .\"
 .\" Copyright (c) 1980, 1990, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -534,7 +534,7 @@ but omitting word `$'
 .El
 .Pp
 The `:' separating the event specification from the word designator
-can be omitted if the argument selector begins with a `\*(ua', `$', `*'
+can be omitted if the argument selector begins with a `\*(ua', `$', `*',
 `\-' or `%'.
 After the optional word designator can be
 placed a sequence of modifiers, each preceded by a `:'.
@@ -740,12 +740,10 @@ starting with a letter.  The underscore character is considered a letter.
 If
 .Ar name
 is not a shell variable, but is set in the environment, then
-that value is returned (but
-.Em :
-modifiers and the other forms
+that value is returned (but `:' modifiers and the other forms
 given below are not available here).
 .It $name Ns Op selector
-.It ${name Ns [ selector ] }
+.It ${name Ns [ selector ] Ns }
 May be used to select only some of the words from the value of
 .Ar name .
 The selector is subjected to `$' substitution and may consist of a single
@@ -956,7 +954,7 @@ Several of the builtin commands (to be described later)
 take expressions, in which the operators are similar to those of C, with
 the same precedence.
 These expressions appear in the
-.Ar @,
+.Ar @ ,
 .Ar exit ,
 .Ar if ,
 and
@@ -1500,7 +1498,7 @@ changes to the new directory (ala
 .Ic cd )
 and pushes the old current working directory
 (as in
-.Ic csw )
+.Ic cwd )
 onto the directory stack.
 With a numeric argument,
 .Ic pushd
@@ -2128,7 +2126,7 @@ substitutions on a single line to 20.
 .Xr a.out 5 ,
 .Xr environ 7 ,
 .br
-.Em An introduction to the C shell
+.Em "An introduction to the C shell"
 .Sh HISTORY
 .Nm
 appeared in