Enable rpmstuff and debstuff specific tokens

Can be useful in cases when Debian and RHEL/Fedora/... paths differ.

src/include/build.sh

         MKIT_COMMON)    _expand_tokens "tokens" ;;
         markdown)       _expand_includes | _expand_tokens "tokens" ;;
         rpmstuff)       _expand_tokens "tokens" "rpmstuff:tokens" ;;
+        debstuff)       _expand_tokens "tokens" "debstuff:tokens" ;;
         *)              die "unknown file type: $ftype" ;;
     esac
 }
         do
             dftgt="debian/${dfsrc#$debian_skel}"
             mkdir -p "$(dirname "$dftgt")"
-            _build1 "$dfsrc" "$dftgt"
+            _build1 "$dfsrc" "$dftgt" debstuff
         done
     echo debian >> "$MKIT_LOCAL/built.lst"
 }
     specsrc="$(ini 1value "dist:rpmstuff")"
     test -n "$specsrc" || die "dist:rpmstuff not specified"
     test -f "$specsrc" || die "specfile template not found: $specsrc"
-    _build1 "$specsrc" "$specname"
+    _build1 "$specsrc" "$specname" rpmstuff
 }