--- ray/doc/man/man1/histo.1	2007/07/12 14:58:52	1.5
+++ ray/doc/man/man1/histo.1	2007/09/04 17:36:40	1.6
@@ -1,4 +1,4 @@
-.\" RCSid "$Id: histo.1,v 1.5 2007/07/12 14:58:52 greg Exp $"
+.\" RCSid "$Id: histo.1,v 1.6 2007/09/04 17:36:40 greg Exp $"
 .TH HISTO 1 9/6/96 RADIANCE
 .SH NAME
 histo - compute 1-dimensional histogram of N data columns
@@ -49,9 +49,9 @@ it will be ignored unless the
 .I \-c
 option is specified.
 .SH EXAMPLE
-To count data values between -1 and 1 in 50 bins:
+To count data values between \-1 and 1 in 50 bins:
 .IP "" .2i
-histo -1 1 50 < input.dat
+histo \-1 1 50 < input.dat
 .PP
 To count frequencies of integers between 0 and 255:
 .IP "" .2i