tests: duplicate test for pager for old extension and for in-core pager When the old pager extension is enabled, I think we should try to be as BC as reasonable. To help with that, this patch brings back test-pager.t as of 65a3b4d67a65 (pager: add a test of --pager=no functionality, 2017-02-06), but under the name test-pager-legacy.t However, since the behavior has changed in a few cases (notably by no longer respecting pager.attend), the file is modified to work with the current version. We will recover some lost BC in coming patches. Also, to make sure the in-core pager does not depend on the pager extension being enabled, this patch disables the extension in test-pager.t. It turns out that pager.attend-$cmd was only supported when the pager extension was enabled, so the tests are updated to reflect that. We will need to decide what to do with these.

util: make strdate's defaults default value a dict It was specified to be an empty list in c6adf2be6069 in 2007. It was correct at the time. But when the function was refactored in 91bc001a592f (2010), it started expecting a dict. I guess this code path is untested? Thanks to Yuya for spotting this.