fix a small nroff bug & sort the references
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@ -1,4 +1,4 @@
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.\" $NetBSD: toupper.3,v 1.6 1998/02/05 18:48:14 perry Exp $
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.\" $NetBSD: toupper.3,v 1.7 1998/04/27 22:19:02 fair Exp $
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.\"
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.\" Copyright (c) 1989, 1991 The Regents of the University of California.
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.\" All rights reserved.
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@ -54,7 +54,7 @@ The
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.Fn toupper
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function converts a lower-case letter to the corresponding
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upper-case letter.
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.SH RETURN VALUES
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.Sh RETURN VALUES
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If the argument is a lower-case letter, the
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.Fn toupper
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function returns the corresponding upper-case letter if there is
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@ -69,9 +69,9 @@ one; otherwise the argument is returned unchanged.
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.\" .Xr isupper
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.\" is true.
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.Sh SEE ALSO
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.Xr isascii 3 ,
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.Xr isalnum 3 ,
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.Xr isalpha 3 ,
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.Xr isascii 3 ,
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.Xr iscntrl 3 ,
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.Xr isdigit 3 ,
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.Xr isgraph 3 ,
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@ -81,9 +81,9 @@ one; otherwise the argument is returned unchanged.
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.Xr isspace 3 ,
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.Xr isupper 3 ,
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.Xr isxdigit 3 ,
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.Xr stdio 3 ,
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.Xr toascii 3 ,
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.Xr toupper 3 ,
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.Xr stdio 3 ,
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.Xr ascii 7
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.Sh STANDARDS
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The
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