qapi: use one symbol per line

The documentation parser we are going to add only handles a single
symbol per line.
Signed-off-by: NMarc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161117155504.21843-8-marcandre.lureau@redhat.com>
Reviewed-by: NMarkus Armbruster <armbru@redhat.com>
Signed-off-by: NMarkus Armbruster <armbru@redhat.com>

qapi-schema.json

@@ -3612,15 +3612,19 @@
 ##
 # @QKeyCode:
 #
+# @unmapped: since 2.0
+# @pause: since 2.0
+# @ro: since 2.4
+# @kp_comma: since 2.4
+# @kp_equals: since 2.6
+# @power: since 2.6
+#
 # An enumeration of key name.
 #
 # This is used by the send-key command.
 #
 # Since: 1.3.0
 #
-# 'unmapped' and 'pause' since 2.0
-# 'ro' and 'kp_comma' since 2.4
-# 'kp_equals' and 'power' since 2.6
 ##
 { 'enum': 'QKeyCode',
   'data': [ 'unmapped',

qapi/block-core.json

@@ -1712,9 +1712,13 @@
 #
 # Drivers that are supported in block device operations.
 #
-# @host_device, @host_cdrom: Since 2.1
+# @host_device: Since 2.1
+# @host_cdrom: Since 2.1
 # @gluster: Since 2.7
-# @nbd, @nfs, @replication, @ssh: Since 2.8
+# @nbd: Since 2.8
+# @nfs: Since 2.8
+# @replication: Since 2.8
+# @ssh: Since 2.8
 #
 # Since: 2.0
 ##