style(3p/lisp): expand tabs in npg, mime4cl and sclf

Done using

    find third_party/lisp/{sclf,mime4cl,npg} \
      -name '*.lisp' -or -name '*.asd' \
      -exec bash -c 'expand -i -t 8 "$0" | sponge "$0"' {} \;

Change-Id: If84afac9c1d5cbc74e137a5aa0ae61472f0f1e90
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5066
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>

third_party/lisp/sclf/sclf.asd

@@ -49,10 +49,10 @@ uses, too small to fit anywhere else."
      (:file "directory" :depends-on ("package" "sclf" "time"))
      (:file "serial" :depends-on ("package" "sclf"))
      (:module "mp"
-	      :depends-on ("package" "sclf")
-	      :components
-	      ((:doc-file "README")
-	       (:file #.(first
-			 (list #+cmu "cmu"
-			       #+sbcl "sbcl"
-			       "unknown")))))))
+              :depends-on ("package" "sclf")
+              :components
+              ((:doc-file "README")
+               (:file #.(first
+                         (list #+cmu "cmu"
+                               #+sbcl "sbcl"
+                               "unknown")))))))