pylint: also verify scripts

Build all scripts in install/tools/ to check them with pylint, so that
``make pylint`` always checks all scripts. The script files are
generated by make.

Please note that fastlint does not check script files.

See: https://pagure.io/freeipa/issue/7772
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Thomas Woerner <twoerner@redhat.com>

Makefile.am

@@ -274,6 +274,8 @@ yamllint: $(YAML_FILES)
 
 if WITH_PYLINT
 pylint: $(GENERATED_PYTHON_FILES) ipasetup.py
+	@# build CLI scripts
+	$(MAKE) -C $(top_builddir)/install/tools
 	FILES=`find $(top_srcdir) \
 		-type d -exec test -e '{}/__init__.py' \; -print -prune -o \
 		-path './rpmbuild' -prune -o \