* asctime.c, newctime.3, newtzset.3: Don't imply ASCII is required.

asctime.c

@@ -55,7 +55,7 @@
 ** ??? ???-2147483648 -2147483648:-2147483648:-2147483648     -2147483648\n
 ** (two three-character abbreviations, five strings denoting integers,
 ** seven explicit spaces, two explicit colons, a newline,
-** and a trailing ASCII nul).
+** and a trailing NUL byte).
 ** The values above are for systems where an int is 32 bits and are provided
 ** as an example; the define below calculates the maximum for the system at
 ** hand.

newctime.3

@@ -1,6 +1,6 @@
 .TH NEWCTIME 3
 .SH NAME
-asctime, ctime, difftime, gmtime, localtime, mktime \- convert date and time to ASCII
+asctime, ctime, difftime, gmtime, localtime, mktime \- convert date and time
 .SH SYNOPSIS
 .nf
 .B extern char *tzname[2];
@@ -94,8 +94,7 @@ sets the
 .BR tm_isdst 'th
 element of
 .B tzname
-to a pointer to an
-ASCII string that's the time zone abbreviation to be used with
+to a pointer to a string that's the time zone abbreviation to be used with
 .IR localtime 's
 return value.
 .PP

newtzset.3

@@ -88,7 +88,7 @@ ASCII minus
 .RB ( \(mi ),
 ASCII plus
 .RB ( \(pl ),
-and ASCII NUL are allowed.
+and NUL bytes are allowed.
 .TP
 .I offset
 Indicates the value one must add to the local time to arrive at