check if row_label is defined, dont expect true value.
tree4f13e8117567c7d8d68eadd8aee2680e4e96210e
-rw-r--r-- 80 .gitignore
-rw-r--r-- 5856 Build.PL
-rw-r--r-- 352 Changes
-rw-r--r-- 840 MANIFEST.SKIP
drwxr-xr-x - bin
drwxr-xr-x - lib
drwxr-xr-x - t