docs: Harmonize hypervisor names for QEMU and LXC

Trivially replace usages of qemu and lxc in the virsh manpage with their
more heavily used and (according to Wikipedia) correct upper-case
spellings QEMU and LXC.
Signed-off-by: NMichael Weiser <michael.weiser@gmx.de>
Suggested-by: NDaniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: NDaniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: NMichal Privoznik <mprivozn@redhat.com>

docs/manpages/virsh.rst

@@ -577,7 +577,7 @@ from the domain's XML <os/> element and <type/> subelement or one from a
 list of machines from the ``virsh capabilities`` output for a specific
 architecture and domain type.
 
-For the qemu hypervisor, a *virttype* of either 'qemu' or 'kvm' must be
+For the QEMU hypervisor, a *virttype* of either 'qemu' or 'kvm' must be
 supplied along with either the *emulatorbin* or *arch* in order to
 generate output for the default *machine*.  Supplying a *machine*
 value will generate output for the specific machine.
@@ -1072,7 +1072,7 @@ read I/O operations limit.
 write I/O operations limit.
 *--size-iops-sec* specifies size I/O operations limit per second.
 *--group-name* specifies group name to share I/O quota between multiple drives.
-For a qemu domain, if no name is provided, then the default is to have a single
+For a QEMU domain, if no name is provided, then the default is to have a single
 group for each *device*.
 
 Older versions of virsh only accepted these options with underscore
@@ -1084,7 +1084,7 @@ An explicit 0 also clears any limit.  A non-zero value for a given total
 cannot be mixed with non-zero values for read or write.
 
 It is up to the hypervisor to determine how to handle the length values.
-For the qemu hypervisor, if an I/O limit value or maximum value is set,
+For the QEMU hypervisor, if an I/O limit value or maximum value is set,
 then the default value of 1 second will be displayed. Supplying a 0 will
 reset the value back to the default.
 
@@ -1211,7 +1211,7 @@ to a unique target name (<target dev='name'/>) or source file (<source
 file='name'/>) for one of the disk devices attached to *domain* (see
 also ``domblklist`` for listing these names).
 *bandwidth* specifies copying bandwidth limit in MiB/s, although for
-qemu, it may be non-zero only for an online domain. For further information
+QEMU, it may be non-zero only for an online domain. For further information
 on the *bandwidth* argument see the corresponding section for the ``blockjob``
 command.
 
@@ -1642,7 +1642,7 @@ domblkstat
 Get device block stats for a running domain.  A *block-device* corresponds
 to a unique target name (<target dev='name'/>) or source file (<source
 file='name'/>) for one of the disk devices attached to *domain* (see
-also ``domblklist`` for listing these names). On a lxc or qemu domain,
+also ``domblklist`` for listing these names). On a LXC or QEMU domain,
 omitting the *block-device* yields device block stats summarily for the
 entire domain.
 
@@ -3265,7 +3265,7 @@ destination). Some hypervisors do not support this feature and will return an
 error if this parameter is used.
 
 Optional *disks-port* sets the port that hypervisor on destination side should
-bind to for incoming disks traffic. Currently it is supported only by qemu.
+bind to for incoming disks traffic. Currently it is supported only by QEMU.
 
 
 migrate-compcache
@@ -7457,7 +7457,7 @@ qemu-monitor-command
    qemu-monitor-command domain { [--hmp] | [--pretty] } command...
 
 Send an arbitrary monitor command *command* to domain *domain* through the
-qemu monitor.  The results of the command will be printed on stdout.  If
+QEMU monitor.  The results of the command will be printed on stdout.  If
 *--hmp* is passed, the command is considered to be a human monitor command
 and libvirt will automatically convert it into QMP if needed.  In that case
 the result will also be converted back from QMP.  If *--pretty* is given,
@@ -7476,7 +7476,7 @@ qemu-agent-command
    qemu-agent-command domain [--timeout seconds | --async | --block] command...
 
 Send an arbitrary guest agent command *command* to domain *domain* through
-qemu agent.
+QEMU agent.
 *--timeout*, *--async* and *--block* options are exclusive.
 *--timeout* requires timeout seconds *seconds* and it must be positive.
 When *--aysnc* is given, the command waits for timeout whether success or