virCgroupNewPartition: Fix comment

The function has no argument named @name rather than @path
instead.  The comment is, however, referring to @name while it
should have been referring to @path really.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

src/util/vircgroup.c

@@ -1290,7 +1290,7 @@ virCgroupSetPartitionSuffix(const char *path, char **res)
  * @controllers: mask of controllers to create
  *
  * Creates a new cgroup to represent the resource
- * partition path identified by @name.
+ * partition path identified by @path.
  *
  * Returns 0 on success, -1 on failure
  */