Fix man warnings.

doc/sane-agfafocus.man

@@ -166,10 +166,10 @@ a scanner, I could be helpful in adding support for these scanners.
 
 The AGFA HORIZON scanners are SCSI-2 scanners, and it would probably
 be easier to support these scanners in a SCSI-2 compliant backend.
-.SH "SEE ALSO"
+.SH SEE ALSO
 sane(7), sane-scsi(5)
 
 .SH AUTHOR
 
-Ingo Schneider and Karl Anders Øygard.
+Ingo Schneider and Karl Anders \[/O]ygard.
 

doc/sane-avision.man

@@ -160,4 +160,4 @@ sane(7), sane-scsi(5), sane-usb(5)
 http://www.exactcode.de/oss/avision/
 
 .SH AUTHOR
-René Rebe and Meino Christian Cramer
+Ren\['e] Rebe and Meino Christian Cramer

doc/sane-coolscan2.man

@@ -178,5 +178,5 @@ No real bugs currently known, please report any to the backend maintainer
 or the SANE developers' email list.
 
 .SH AUTHORS
-The backend is written and maintained by András Major
+The backend is written and maintained by Andr\['a]s Major
 (andras@users.sourceforge.net).

doc/sane-genesys.man

@@ -121,7 +121,7 @@ Henning Meier-Geinitz <henning@meier-geinitz.de>
 .br 
 Gerhard Jaeger <gerhard@gjaeger.de>
 .br 
-Stéphane Voltz <svoltz@numericable.fr>
+St\['e]phane Voltz <svoltz@numericable.fr>
 .br 
 Philipp Schmid <philipp8288@web.de>
 .br 

doc/sane-umax_pp.man

@@ -270,7 +270,7 @@ For latest bug fixes and information see
 .I http://umax1220p.sourceforge.net/
 
 .SH "AUTHOR"
-Stéphane VOLTZ <svoltz@wanadoo.fr>
+St\['e]phane VOLTZ <svoltz@wanadoo.fr>
 
 .SH "CREDITS"
 Support for the 610P has been made possible thank to an hardware donation