sh/init.sh: fix the test for cache restoration

This fixes the test for cache restoration since we are no longer caching
the dependency tree.

sh/init.sh.GNU.in

@@ -36,7 +36,7 @@ ebegin "Creating $RC_SVCDIR"
 mkdir -p $RC_SVCDIR
 eend $?
 
-if [ -e "$RC_LIBEXECDIR"/cache/deptree ]; then
+if [ -e "$RC_LIBEXECDIR"/cache/softlevel ]; then
     cp -p "$RC_LIBEXECDIR"/cache/* "$RC_SVCDIR" 2>/dev/null
 fi