man: use url macro to urls and fix reference manual notations

diff --git a/mtr.8 b/mtr.8
index 8e41b8c535c02a1eecad9f1c992d0628b930b324..3752df565e4e365150b141094faa019bcb33681d 100644 (file)
--- a/mtr.8
+++ b/mtr.8
@@ -204,7 +204,8 @@ to use the GTK+ based X11 window interface (if available).
 GTK+ must have been available on the system when 
 .B mtr 
 was built for this to work.  See the GTK+ web page at 
-.B http://www.gtk.org/
+.UR http://\:www.\:gtk.\:org/
+.UE
 for more information about GTK+.
 .TP
 .B \-l\fR, \fB\-\-raw
@@ -444,14 +445,16 @@ these routers.
 .SH CONTACT INFORMATION
 .PP
 For the latest version, see the mtr web page at 
-.BR http://www.bitwizard.nl/mtr/ .
+.UR http://\:www.\:bitwizard.\:nl/\:mtr/
+.UE
 .PP
 The mtr mailinglist was little used and is no longer active. 
 .PP
 For patches, bug reports, or feature requests, please open an issue on
 GitHub at:
-.BR https://github.com/traviscross/mtr .
+.UR https://\:github\:.com/\:traviscross/\:mtr
+.UE .
 .SH "SEE ALSO"
-traceroute(8),
-ping(8),
+.BR traceroute (8),
+.BR ping (8),
 TCP/IP Illustrated (Stevens, ISBN 0201633469).