man: corosync-qdevice: fix formatting vs. punctuation

Previously, some enumerations were hard to follow, as they were marked
up all at once, including punctuation and connectives. Also mark up
some expressly given defaults.

Signed-off-by: Jan Pokorný <jpokorny@redhat.com>
Reviewed-by: Jan Friesse <jfriesse@redhat.com>

man/corosync-qdevice.8

@@ -122,7 +122,7 @@ Specifies interval between two regular heuristics execution. Default value is
 .TP
 .B mode
 Can be on of
-.I on, sync or off
+.IR on ", " sync " or " off
 and specifies mode of operation of heuristics. Default is
 .I off
 what means heuristics are disabled. When
@@ -149,7 +149,7 @@ subkey holds the configuration for model 'net'.
 .TP
 .B tls
 Can be one of
-.I on, off or required
+.IR on ", " off " or " required
 and specifies if tls should be used.
 .I on
 means a connection with TLS is attempted first, but if the server doesn't advertise TLS support 
@@ -159,7 +159,8 @@ is used then TLS is not required and it's then not even tried. This mode is the
 only one which doesn't need a properly initialized NSS database.
 .I required
 means TLS is required and if the server doesn't support TLS, qdevice will
-exit with error message. Default is on.
+exit with error message. Default is
+.IR on .
 .TP
 .B host
 Specifies the IP address or host name of the qnetd server to be used. This parameter
@@ -172,19 +173,20 @@ Specifies TCP port of qnetd server. Default is 5403.
 Decision algorithm. Can be one of the
 .I ffsplit
 or
-.I lms.
+.IR lms .
 (actually there are also
 .I test
 and
-.I 2nodelms
-, both of which are mainly for developers and shouldn't be used for production clusters). For a 
-description of what each algorithm means and how the algorithms differ see their individual sections.
-Default value is ffsplit.
+.IR 2nodelms ,
+both of which are mainly for developers and shouldn't be used for production clusters).
+For a description of what each algorithm means and how the algorithms differ see their
+individual sections.
+Default value is
+.IR ffsplit .
 .TP
 .B tie_breaker
 can be one of
-.I lowest,
-.I highest
+.IR lowest ", " highest
 or valid_node_id (number) values. It's used as a fallback if qdevice has to decide between two or more
 equal partitions.
 .I lowest
@@ -192,7 +194,8 @@ means the partition with the lowest node id is chosen.
 .I highest
 means the partition with highest node id is chosen. And valid_node_id means that the partition
 containing the node with the given node id is chosen.
-Default is 'lowest'.
+Default is
+.IR lowest .
 .TP
 .B connect_timeout
 Timeout when
@@ -214,10 +217,9 @@ Logging configuration is within the
 directive.
 .B corosync-qdevice
 parses and supports most of the options with exception of
-.B to_logfile,
-.B logfile
+.BR to_logfile ", " logfile
 and
-.B logfile_priority.
+.BR logfile_priority .
 The 
 .B logger_subsys
 sub-directive can be also used if
@@ -248,7 +250,7 @@ option.
 If TLS is not required just edit corosync.conf file and set
 .B quorum.device.net.tls
 to
-.I off.
+.IR off .
 
 .SH MODEL NET ALGORITHMS
 Algorithms are used to change behavior of how