ref-manuals: Edits to kernel-module-split class.

(From yocto-docs rev: 5880ecb8bf70944f257832c2b692ce4724bc6a85)

Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

documentation/ref-manual/ref-classes.xml

@@ -1449,7 +1449,7 @@
     <title><filename>kernel-module-split.bbclass</filename></title>
 
     <para>
-        The kernel module split (<filename>kernel-module-split</filename>) class
+        The <filename>kernel-module-split</filename> class
         provides common functionality for splitting Linux kernel modules into
         separate packages.
     </para>