Fix a wrong sentence in the docs.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

docs/buildroot.html

@@ -1010,7 +1010,7 @@ $(eval $(call GENTARGETS,package,libfoo,host))
 
    <p>For the target package, the <code>GENTARGETS</code> uses the
    variables defined by the .mk file and prefixed by the uppercased
-   package name: <code>LIBFOO_*</code>. For target package, it uses
+   package name: <code>LIBFOO_*</code>. For the host package, it uses
    the <code>HOST_LIBFOO_*</code>. For <i>some</i> variables, if the
    <code>HOST_LIBFOO_</code> prefixed variable doesn't exist, the
    package infrastructure uses the corresponding variable prefixed by