largefiles: do not use platform.system() See the previous patch for the reason. Differential Revision: https://phab.mercurial-scm.org/D1020

logtoprocess: do not use platform.system() See the previous patch for the reason. Differential Revision: https://phab.mercurial-scm.org/D1019

selectors2: do not use platform.system() `platform.system()` may have a side effect spawning a shell executing `uname -p`, which may print a warning when the current directory is removed: shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory This patch changes selectors2 to test the `sys.platform` string, which is a much safer way to detect Jython. Jython's `sys.platform` looks like this: Jython 2.7.1 (default:0df7adb1b397, Jun 30 2017, 19:02:43) [OpenJDK 64-Bit Server VM (Oracle Corporation)] on java1.8.0_144 Type "help", "copyright", "credits" or "license" for more information. >>> import sys >>> sys.platform 'java1.8.0_144 ( ==linux2 for targets )' Differential Revision: https://phab.mercurial-scm.org/D1018

dispatch: when --pager=no is passed, also disable pager on req.repo.ui With a future chg change, `req.repo` could be set and currently it is unaffected by `--pager=on`. This patch makes it so. This could make one of the test cases in `test-pager.t` pass with future chg changes. Differential Revision: https://phab.mercurial-scm.org/D990

bundle2: immediate exit for ctrl+c (issue5692) 21c2df59a regressed bundle2 by catching all exceptions and trying to handle them. The old behavior was to allow KeyboardInterrupts to throw and not have graceful cleanup, which allowed it to exit immediately. Let's go back to that behavior. Differential Revision: https://phab.mercurial-scm.org/D960

exewrapper: format with clang-format A few *s move around, some spaces around parens, a couple of braces. Nothing remarkable. Differential Revision: https://phab.mercurial-scm.org/D1032