Add system test name to "file not removed" info

bin/tests/system/run.sh.in

@@ -295,9 +295,9 @@ fi
 print_outstanding_files() {
     if test -d ${srcdir}/../../../.git; then
         git status -su --ignored "${systest}" 2>/dev/null | \
-        sed -n -e 's|^?? \(.*\)|I:file \1 not removed|p' \
-            -e 's|^!! \(.*/named.run\)$|I:file \1 not removed|p' \
-            -e 's|^!! \(.*/named.memstats\)$|I:file \1 not removed|p'
+        sed -n -e 's|^?? \(.*\)|I:'${systest}':file \1 not removed|p' \
+            -e 's|^!! \(.*/named.run\)$|I:'${systest}':file \1 not removed|p' \
+            -e 's|^!! \(.*/named.memstats\)$|I:'${systest}':file \1 not removed|p'
     fi
 }