Makefile: make internal comment in doc Makefile silent
There is a comment in the doc/Makefile that is beinhg spit out
when calling 'make clean'. This is harmless but can be confusing
to users so let's make it silent.
@@ -68,7 +68,7 @@ singlehtml: doxy content kconfig
clean:
rm -fr $(BUILDDIR)
- # Keeping these temporarily, but no longer strictly needed.
+ @# Keeping these temporarily, but no longer strictly needed.
rm -fr doxygen
rm -fr misc
rm -fr reference/kconfig/*.rst
