/usr/share/doc-base/npm-files is in npm 1.4.21+ds-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 | Document: npm-files
Title: Npm files documentation
Author: Isaac Z. Schlueter
Abstract: This describes the files used by npm.
Section: Programming
Format: HTML
Index: /usr/share/doc/npm/misc/npm-index.html
Files: /usr/share/doc/npm/files/*.html
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