Record external/libcmis/xwwwformurlencoded.patch.0 as sent upstream

Change-Id: I9306eeed3d1e661c5819ccf8f32fb9aefe185008
Reviewed-on: https://gerrit.libreoffice.org/59989
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

external/libcmis/UnpackedTarball_libcmis.mk

@@ -13,6 +13,7 @@ $(eval $(call gb_UnpackedTarball_set_tarball,libcmis,$(LIBCMIS_TARBALL)))
 
 $(eval $(call gb_UnpackedTarball_set_patchlevel,libcmis,1))
 
+# xwwwformurlencoded.patch.0 sent upstream as <https://github.com/tdf/libcmis/pull/20>
 $(eval $(call gb_UnpackedTarball_add_patches,libcmis, \
 						external/libcmis/libcmis-libxml2_compatibility.patch \
 						external/libcmis/libcmis-fix-google-drive.patch \