config: Make configuration file comments consistent

During review, Julio Montes pointed out that there was some missing text in the
comments for configuration-xyz.toml.in relative to the virtiofs version.

Fixes: #3005

Suggested-by: Julio Montes <julio.montes@intel.com>
Signed-off-by: Christophe de Dinechin <dinechin@redhat.com>

cli/config/configuration-acrn.toml.in

@@ -19,6 +19,8 @@ image = "@IMAGEPATH@"
 # List of valid annotation names for the hypervisor
 # Each member of the list is a regular expression, which is the base name
 # of the annotation, e.g. "path" for io.katacontainers.config.hypervisor.path"
+# The default if not set is empty (all annotations rejected.)
+# Your distribution recommends: @DEFENABLEANNOTATIONS@
 enable_annotations = @DEFENABLEANNOTATIONS@
 
 # List of valid annotations values for the hypervisor

cli/config/configuration-clh.toml.in

@@ -18,6 +18,8 @@ image = "@IMAGEPATH@"
 # List of valid annotation names for the hypervisor
 # Each member of the list is a regular expression, which is the base name
 # of the annotation, e.g. "path" for io.katacontainers.config.hypervisor.path"
+# The default if not set is empty (all annotations rejected.)
+# Your distribution recommends: @DEFENABLEANNOTATIONS@
 enable_annotations = @DEFENABLEANNOTATIONS@
 
 # List of valid annotations values for the hypervisor

cli/config/configuration-fc.toml.in

@@ -18,6 +18,8 @@ image = "@IMAGEPATH@"
 # List of valid annotation names for the hypervisor
 # Each member of the list is a regular expression, which is the base name
 # of the annotation, e.g. "path" for io.katacontainers.config.hypervisor.path"
+# The default if not set is empty (all annotations rejected.)
+# Your distribution recommends: @DEFENABLEANNOTATIONS@
 enable_annotations = @DEFENABLEANNOTATIONS@
 
 # List of valid annotations values for the hypervisor

cli/config/configuration-qemu.toml.in

@@ -20,6 +20,8 @@ machine_type = "@MACHINETYPE@"
 # List of valid annotation names for the hypervisor
 # Each member of the list is a regular expression, which is the base name
 # of the annotation, e.g. "path" for io.katacontainers.config.hypervisor.path"
+# The default if not set is empty (all annotations rejected.)
+# Your distribution recommends: @DEFENABLEANNOTATIONS@
 enable_annotations = @DEFENABLEANNOTATIONS@
 
 # List of valid annotations values for the hypervisor