Consistently make generator invocation $(QUIET) too

Change-Id: I5251f130aafdebdb4698ef4513b1dcf9f3bdf454
Reviewed-on: https://gerrit.libreoffice.org/69571
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

compilerplugins/Makefile-clang.mk

@@ -175,7 +175,7 @@ ifdef LO_CLANG_SHARED_PLUGINS
 $(CLANGINDIR)/sharedvisitor/sharedvisitor.cxx: $(shell grep -l "LO_CLANG_SHARED_PLUGINS" $(CLANGINDIR)/*.cxx)
 $(CLANGINDIR)/sharedvisitor/sharedvisitor.cxx: $(CLANGOUTDIR)/sharedvisitor/generator$(CLANG_EXE_EXT)
 	$(call gb_Output_announce,$(subst $(SRCDIR)/,,$@),$(true),GEN,1)
-	$(CLANGOUTDIR)/sharedvisitor/generator$(CLANG_EXE_EXT) \
+	$(QUIET)$(CLANGOUTDIR)/sharedvisitor/generator$(CLANG_EXE_EXT) \
         $(COMPILER_PLUGINS_TOOLING_ARGS:%=-arg=%) \
         $(shell grep -l "LO_CLANG_SHARED_PLUGINS" $(CLANGINDIR)/*.cxx) \
         > $(CLANGINDIR)/sharedvisitor/sharedvisitor.cxx