GNOME Bugzilla – Bug 644683
typo: "The default width of the name column the file list."
Last modified: 2012-01-22 20:44:15 UTC
I guess this should be "The default width of the name column IN the file list."
Confirming this, the in word is indeed missing from the GSettings name-column-width key's description.
This problem has been fixed in the development version. The fix will be available in the next major software release. Thank you for your bug report.