tests/test-remotefilelog-keepset.t

tests: treat `select` as a built-in module on Windows

This fixes:

    --- C:/Users/Matt/hg/tests/test-check-module-imports.t
    +++ C:/Users/Matt/hg/tests/test-check-module-imports.t.err
    @@ -43,3 +43,15 @@
       > -X tests/test-verify-repo-operations.py \
       > -X tests/test-extension.t \
       > | sed 's-\\-/-g' | "$PYTHON" "$import_checker" -
    +  hgext/zeroconf/Zeroconf.py:86: stdlib import "socket" follows local import: select\r (esc)
    +  hgext/zeroconf/Zeroconf.py:87: stdlib import "struct" follows local import: select\r (esc)
    +  hgext/zeroconf/Zeroconf.py:88: stdlib import "threading" follows local import: select\r (esc)
    +  hgext/zeroconf/Zeroconf.py:89: stdlib import "time" follows local import: select\r (esc)
    +  hgext/zeroconf/Zeroconf.py:90: stdlib import "traceback" follows local import: select\r (esc)
    +  mercurial/posix.py:18: stdlib import "stat" follows local import: select\r (esc)
    +  mercurial/posix.py:19: stdlib import "sys" follows local import: select\r (esc)
    +  mercurial/posix.py:20: stdlib import "tempfile" follows local import: select\r (esc)
    +  mercurial/posix.py:21: stdlib import "typing" follows local import: select\r (esc)
    +  tests/tinyproxy.py:19: stdlib import "socket" follows local import: select\r (esc)
    +  tests/tinyproxy.py:20: stdlib import "sys" follows local import: select\r (esc)
    +  [1]

    ERROR: test-check-module-imports.t output changed

#require no-windows

  $ . "$TESTDIR/remotefilelog-library.sh"

  $ hg init master
  $ cd master
  $ cat >> .hg/hgrc <<EOF
  > [remotefilelog]
  > server=True
  > serverexpiration=-1
  > EOF
  $ echo x > x
  $ hg commit -qAm x
  $ echo y > y
  $ hg commit -qAm y
  $ echo z > z
  $ hg commit -qAm z
  $ cd ..

  $ hgcloneshallow ssh://user@dummy/master shallow -q
  3 files fetched over 1 fetches - (3 misses, 0.00% hit ratio) over *s (glob)

# Compute keepset for 0th and 2nd commit, which implies that we do not process
# the 1st commit, therefore we diff 2nd manifest with the 0th manifest and
# populate the keepkeys from the diff
  $ cd shallow
  $ cat >> .hg/hgrc <<EOF
  > [remotefilelog]
  > pullprefetch=0+2
  > EOF
  $ hg debugkeepset

# Compute keepset for all commits, which implies that we only process deltas of
# manifests of commits 1 and 2 and therefore populate the keepkeys from deltas
  $ cat >> .hg/hgrc <<EOF
  > [remotefilelog]
  > pullprefetch=all()
  > EOF
  $ hg debugkeepset