Fix spelling.

Author: rouilj

share/man/man1/roundup-server.1

@@ -22,7 +22,7 @@ specified if -d is used.
 .TP
 \fB-t\fP \fBfork|thread|debug|none\fP
 Control multi-process mode. \fBdebug\fP and \fBnone\fP are always
-available. If an invalid mode is specifie the server starts in
+available. If an invalid mode is specified the server starts in
 \fBnone\fP (also called single) mode. Default fork.
 .TP
 \fB-l\fP \fIfile\fP