i18n-de: Remove unused sprintf parameter

tests: unset variable HG if it is set When hg tries to call itself it can call a different hg executable when this variable is set. Some tests fail when the called hg version is different.

test-hybridencode: a few more cases

tests: enable more server tests on Windows

test-static-http.t: enable on Windows We cannot read $! to get the background job process identifier, with MinGW it can return internal identifiers not matching the native Windows ones. Instead we introduce a helper script polling on the pid file. We assume the pid file data will be written in order.

Merge spelling fixes

spelling: requested

en-us: serialization

en-us: recognized

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en-us: initialization

en-us: Initialize

grammar: it-handles

grammar: rolled-back

grammar: just-the-heads

spelling: value

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spelling: transaction

spelling: thoroughly

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spelling: synchronize

spelling: supersede

spelling: successfully

spelling: succeeded

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