sqlite: Tweak the patch management process in README.chromium.

The current process uses --ignore-space-change a bit too much, and
caused our patches to not accurately reflect the changes in our source
tree. Fortunately, all the impacted patches are based on upstream
check-ins, so the original contents was easily retrieved. Furthermore,
none of the missing whitespace was significant in C.

This CL removes --ignore-space-change from patch generation and from
tree diff checking.

Bug: None
Change-Id: Ic5d70f23e4366d4958d75149ae1dec0c9a605082
Reviewed-on: https://chromium-review.googlesource.com/c/1424165
Commit-Queue: Victor Costan <pwnall@chromium.org>
Auto-Submit: Victor Costan <pwnall@chromium.org>
Reviewed-by: Chris Mumford <cmumford@google.com>
Cr-Commit-Position: refs/heads/master@{#624930}
1 file changed