Help/prop_tgt/LINK_OPTIONS: fix `:genex:` reference

Help/prop_tgt/LINK_OPTIONS.rst

@@ -9,7 +9,7 @@ libraries need to use the :prop_tgt:`STATIC_LIBRARY_OPTIONS` target property.
 
 These options are used for both normal linking and device linking
 (see policy :policy:`CMP0105`). To control link options for normal and device
-link steps, :genex:`$<HOST_LINK>` and ::genex:`$<DEVICE_LINK>` generator
+link steps, :genex:`$<HOST_LINK>` and :genex:`$<DEVICE_LINK>` generator
 expressions can be used.
 
 This property holds a :ref:`semicolon-separated list <CMake Language Lists>` of