import-checker: fix names of dynamically loaded modules
The import checker found standard library modules such as
lib-dynload/zlibmodule.so but saw that as a 'zlibmodule' module, not as the
'zlib' module.
Debian ships Python with most modules built-in and this incorrect handling of
dynamic modules did thus not cause problems on that platform.
Fedora ships Python with as many modules as possible loaded dynamically. That
made the import checker tests fail with incorrect classification of the
following modules: array fcntl grp itertools time zlib.
This change makes test-module-imports.t pass on Fedora.
$ hg init 1
$ echo '[ui]' >> 1/.hg/hgrc
$ echo 'timeout = 10' >> 1/.hg/hgrc
$ echo foo > 1/foo
$ hg --cwd 1 ci -A -m foo
adding foo
$ hg clone 1 2
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg clone 2 3
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo '[hooks]' >> 2/.hg/hgrc
$ echo 'changegroup.push = hg push -qf ../1' >> 2/.hg/hgrc
$ echo bar >> 3/foo
$ hg --cwd 3 ci -m bar
$ hg --cwd 3 push ../2
pushing to ../2
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files