Option to remove a path from index

[Google Code Exporter]

Currently there is no straightforward way to remove one directory from the 
index (cindex -list). One needs to provide the complete new list with cindex 
-reset to remove one entry. Please provide an option to remove one (or more) of 
the entries from the path that are currently indexed.

Original issue reported on code.google.com by [e-mail] on 17 May 2012 at 9:09