Enable elisp linter

Author: taku0

scripts/run_linter.sh

@@ -3,4 +3,4 @@
 # Run linter.  Used in Makefile.
 
 ./scripts/invoke_eldev.sh emacs --version || exit 1
-find ./*.el test/*.el '!' -name '*autoloads.el' -exec ./scripts/invoke_eldev.sh lint '{}' '+'
+find ./*.el test/*.el '!' -name '*autoloads.el' -exec ./scripts/invoke_eldev.sh lint doc re elisp '{}' '+'